Curse and WoWInterface working together to help protect our authors and other site-users

Recently Curse and WoWInterface got together to come up with a solution for an ongoing problem. The problem in question is WowMatrix. The reasons they are a problem are many:

  • WowMatrix violates author copyright and intellectual property rights:
    • They redistribute addons without authors' permissions;
    • When they first started they would scrape the legimate sites for addons then upload them to their own site in addition to deep-linking from the sites;
    • They edited authors' files to remove donation requests and links to their home sites, etc.; and
    • They have failed on many occasions to honour authors' requests to remove addons from their application;
  • In a lot of cases the files served to users have been many versions out of date. This leads to authors having users complain about bugs, bugs that were fixed days or weeks ago in versions that are available on the legitimate sites, causing problems for both the authors and for the end-users;
  • Until the community raised a hue and cry, WowMatrix didn't even supply the authors' names as to who wrote the addon, let alone provide a link to where the addon was legitimately hosted;
  • WowMatrix leeches from the legitimate hosting sites without permission, let alone compensation. Originally, they scraped our sites so they could upload addons to their own site without permission, in addition to deeplinking from our sites. They have finally stopped hosting the addons on their own site, but they still deeplink from our sites, using our resources to run their program. Curse and WoWInterface use a lot of bandwidth every month which costs a lot of money. The way we pay our bills is through site ads, which are directly dependent on users viewing them, and premium memberships. WowMatrix bypasses our download pages, and, as a result, people are not viewing the ads. Of course, this means the ads aren't generating any revenue to pay for the bandwidth. At the rate they were going, if they were allowed to continue using our resources without any compensation, they were going to drive us right out of business. Not only are they stealing our bandwidth and preventing us from being able to recoup that loss, they also have their own ads all over their site and application. They are directly profiting from the stolen bandwidth; and
  • Due to the massive resource drains they put on our sites, we have all experienced heightened loads and weaker performance, especially on patch days. During those days they download so much from our sites that sometimes we have a hard time keeping up to the demands; thus causing legitimate users to experience problems accessing our sites. That's just flat out unacceptable.

For months now, both sites and multiple authors have been trying to come up with solutions to the problems caused by WowMatrix. However, WowMatrix just keeps ignoring authors' requests to remove their addons from their application, working around the protections we have put in place, and proving repeatedly that they have no intention of ever becoming responsible, legitimate members of the community. Instead, they choose to continue to leech off the community. Well we, Curse and WowInterface, have gotten together and between us we believe we may have found a solution to prevent them from pulling authors' addons from our sites to redistribute without permission and stealing our bandwidth any longer. Unfortunately we cannot release details on the solution, so as to keep it viable.

"Yeah yeah yeah, blah blah, get to the important question: What does this mean for me, your sites' user?" For the majority of users it should be completely transparent, you should not notice any difference whatsoever, other than improved site responsiveness during patch days. We hope that we will be able to revert the changes made to our sites eventually, if WowMatrix ever stops violating authors' copyright and ceases stealing our bandwidth and other resources.

If you were previously using WowMatrix to keep your addons updated, please use our official updaters (Curse, WoWInterface). You may also mark addons as favorites on both WoWInterface and Curse in order to be alerted when they are updated.

Administrator, Curse & WowAce

Administrator, WoWInterface

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  • Avatar of Xanithra Xanithra Apr 14, 2009 at 21:37 UTC - 0 likes

    As a former user of WowMatrix, I have to say I used it for the convience of it. And I have noticed that going to sites myself that I could find newer versions of the addons I used from time to time. So I have recently stopped using it.

    I completely agree that you should not be subsidizing their product/service with your bandwith and no compensation from them for that use. And I'm glad you found a way to protect the sites.

    I would hope that Curse & WowAce along with WoWInterface would develop a competing utility that would drain off the WowMatrix users back to your sites. And thus drive your revenue with page view adds. :)

    I love both sites and I want you all to keep up the great work you all are doing !

  • Avatar of downset downset Apr 14, 2009 at 21:32 UTC - 0 likes

    The only reason WowMatrix started stealing your bandwidth is because it actually worked, you product does not work, if you had a decent product no-one would have even heard of wow-matrix.

    Why not develop a decent product? Its sad that a company as big and as rich as those behind wowinterface can't produce a simple updater.

  • Avatar of Kallieen Kallieen Apr 14, 2009 at 21:27 UTC - 0 likes

    Said it on WoWI, will say it here too. I'm very glad you guys were able to find a way to block them - having a stable service on patch day will be wonderful.

  • Avatar of Kaelten Kaelten Apr 14, 2009 at 21:21 UTC - 0 likes

    Curse Client

    The mac client there is usable. It's not the pretiest since wxWidget's mac support is dated but it does work.


    The moment we activated the protection our bandwidth usage dropped 30%. I'm sorry guys, but how can you possibly say that we should throw away enough money every month to hire multiple developers. It really makes no sense.

    Why should we pay their bills? & Adminstrator
    Check out my new addon, OneChoice, it helps you pick quest rewards faster.
    Developer of Ace3, OneBag3, and many other addons and libraries

  • Avatar of downset downset Apr 14, 2009 at 21:07 UTC - 0 likes

    The sad thing is they had an updater that worked very well, most people used WowMatrix for that reason.

    Maybe you should make a decent product yourself instead of making our updating more difficult. Instead of taking this competition and releasing some great updater yourself, you sabotage wow-players and then make some smug post here, like you just did us a favour.

    Pretty sad really, i don't really care what you say about WowMatrix, fact is there updater worked great, your reaction looks like you are jealous and incapable of producing anything decent yourself.

    You don't even support mac, thank you for sabotaging my only option. WowMatrix would have never been so successful if you had a working alternative, i sincerely hope that they find a way around your silly block.

  • Avatar of Vampyl1 Vampyl1 Apr 14, 2009 at 21:04 UTC - 0 likes

    Ok, so now mac users have been robbed of two quiet well working addon updaters, the ace updater that was cancelled a while back and now wowmatrix. It wouldn't be a big deal if there was an honest working mac updater, but theres not. Curse's so called updater is in the beta and is ugly and never seems to work right and i havent even bothered to get the wowinterface updater cause i have heard so many bad things about it. Yes, i sympathize that it used your bandwith but until their is a working solution you should hold off on this

  • Avatar of wevah wevah Apr 14, 2009 at 20:07 UTC - 0 likes

    My only problem with using Flash is that it breaks my usual download habit of downloading addon zips into a different folder than my usual downloads folder (it's a usability issue). The text also doesn't match the site font for me (it's too large).

    I support the need to prevent bandwidth leeching and protect distribution, but if another workable solution is discovered I'm all for it.

  • Avatar of Brimmstone Brimmstone Apr 14, 2009 at 19:44 UTC - 0 likes

    @Malpeg: AFAIK, The Curse Client will only upload data if you install the helper addon, which isn't required.

  • Avatar of Malpeg Malpeg Apr 14, 2009 at 19:21 UTC - 0 likes

    So WoWMatrix won't work but there is no viable option for Mac users. WoWInterface for the Mac is vaporware at this point and Curse has a beta version up for the Mac. Given the history of the Curse client I'm not inclined to take my chances. Besides I'm not inclined to use software that gathers information as I play and sends it to Curse. I don't know what's being collected and for what purpose.

  • Avatar of Hirsute Hirsute Apr 14, 2009 at 19:11 UTC - 0 likes

    Good on you! Perhaps, just perhaps, this will encourage WoWMatrix to start playing nicely with mod authors and other hosting sites. I'm surprised you waited this long to do this, considering how hard on sites WoWMatrix can be.


Date created
Apr 13, 2009
Last updated
Apr 13, 2009