That forum has loads of dead periods where noone chats so it's a good example for the OP to check out and see how useless it really would be. It sounds great but after a week you'll notice that the same 10 people are the ones chatting.
One thing I personally like about this forum is the fact that modifications are not just made out of the blue except it's of high importance. You'll find out that making too many modification would give room for loopholes and bugs that can be used against the forum.
Sometimes I just like to believe that it's part of the major reasons the admin doesn't accept modification offers and ideas that easy. Let's not even forget the fact that the forum even has bounties for different bugs that can't be explioted.