WowAce

you know what, the data on wowhead is tainted by chinese players. just look at EPL or northern STV which clearly as bad data from CN wow showing nodes in 3.x locations. all the 3.x nodes are all over the zone messing it up. i had hoped wowhead would be smarter then that and ignore data. they cleared database but they are just throwing 3.x and 4.x data together. so you really can't trust the data at all :\

Edit

double checking, wowhead actually seems fine for STV, seems the problem is gathermate 2 data, i did overright, it's still putting nodes in bad paces on it's own

http://www.wowhead.com/item=21153

click on northern stv, and look at the sagefish schools in right place, along river, now look at them on gathermate2 in northern STV, it shows them all on land no where near water.. Not sure where the bug is, possiby the parser not knowing difference between zoomed out full STV view, and northern STV view..

i do suspect a little bit of both issues, wowhead having bad cn data, but also gm2 messing it up too. cause EPL still feels wrong to me. those chests in tyr's are always coming back on wowhead and have been gone forever. heck that's 2.x data right there. and the blood of heroes looks like 3.x data

the big problem is the mac client for wowhead hasn't been updated since like patch 3.0 (literally) and it installs a pretty non functional clint that cannot connectto update server, therefor it cannot install a current version of addon or client (if they even exist)..it was noting but a nightmare trying to get it to work, and i have a lot of data too. I just literally did EVERY quest in all the 1-60 zones on both continents. found tons of nodes that were in each zone that aren't on wowhead or gm2, and they ddin't get any of them, such a waste :\

ah edit, they fixed the client on 29th it looks like for mac

Additional thought: Pitbull4 has two VisualHeal folders, and VisualHeal5's .toc file has a neat trick forcing it to only load on WoW 4.x clients, and VisualHeal only loads on WoW 3.x ... could that be done with GatherMate / GatherMate_Data (3.x) and GatherMate2 / GatherMate2_Data (4.x)? It might cut down on pollution. Maybe. Hopefully.

I'll run the WowHead Looter as often as I can. Hopefully the data isn't polluted on their end by Chinese players, who are still on patch 3.x.x

Just to be clear; for now, use "overwrite" rather than "merge" for the import? No need for me to dump zones if I have already deleted the saved variables, for someone else, that would work.

Another thing: when I search WowAce for "gathermate" neither GatherMate2 or GatherMate2_Data show up on the return. To find this page, I had to click Addons at the top and scroll back through the updated addons list. Failing that, find it on Curse and click the wowace.com link.