I'm not sure who started the ggg keyword. Before I was handed the Gods Graves Glyphs list management (by farmfriend) I was mining the already-huge body of FRchival topics for history and archaeology topics that had been missed, and added the ggg keyword to each one. Later I revisited them and added the full keyword, since I'd become the manager. Anyway, I'm thankful that topic contributors sometimes use "ggg", because it makes it possible to evaluate them for the list, and usually to ping them. Anyway, here's the full ggg keyword, sorted, very little editing.
The ggg keyword was something I used to use, got in trouble a year or more along, so I stopped using it, but it would get used by others from time to time thereafter.
Year by year, the GGG keyword, notice that 2004 and 2005 were the peak of its use, which is about right, I got persuaded to take over the pingmeister around that time. Looks like I did this the first time back in May, so, welcome back to my house, down at the end of Failing Memory Lane: