Montezumawell has already expounded on the dynamic of large groups like this one. I have to say that it is looking more and more accurate every day.
I mean - look at me. I've only been posting actively to this site for a couple of months (well - since January - but really only actively very recently). I've already cracked the top 20 in total posts - of 1200+ members. Wild. Amazing what a little effort can accomplish.

The Internet is a wild and freaky place - and yet it so closely mirrors real life it's strange. I guess we all approach it from a different viewpoint because interacting on computers seems like it ought to be so much different from real life - and yet the dynamics are very similar.
Sorry
