Because it can be fun to debate on a tight match and there can be opportunities to make fools of those who wank too much for a particular series.
@MarioRedfield: Or just chat, but those two are more fun.
You forgot about blogging and review blogs.
You don't see those nearly as much
Takashicha makes blogs.
There still aren't as many as as battles and role playing...
Years after "leaving" the show he helped create, Darabont wants his cut.