A theory I thought of examining all my recent con experiences:
FanimeCon is no longer an 'anime' convention anymore. Instead of being 'By Fans, For Fans', Fanime has become a convention about fans (of anime/gaming/art/whatever).
Just look at the recent events, panels, forum threads, and most convention related stuff: speed dating, post-con depression, Black & White Ball, Yaoi Bingo, the list goes on.
But are those events about anime? Or are they focused on the people that enjoy them? Back then, panels had an anime industry-based importance to them (such as a Q&A with representatives from Viz Media for example). Now, it's more socially based, as in 'what I can do' or 'make your own', like Artists Alley. Look at the post-con depression threads. They are there because of the interaction of people, not exactly because you didn't get to watch a premiere or see you favorite anime character in cosplay form. Also, look at everyone's favorite convention moment; most are just simply being around the people and not one single convention hosted activity.
I'm not trying to make an argument or create negative debates. It's just an observation of an evolution of the fandom.
Simply put, FanimeCon is now By Fans, For Fans, and About the Fans