Well, I've seen the way you want this to develop on other forums.
I'd say it would be a MAJOR change in AO if this were to be applied, what I mean is that I've never seen this kind of section ever since I came upon AO. I'd dwait and see the other people's opinions, some will express great joy, mostly the newcomers that have been here for less than a year or so. Those who have been here for a long time will probably like it as it is.
Anime is what brings people together here, but it may not necessarily be the main interest of everyone who stays after posting in the introduction section of the forum. Debate and Discuss is what keeps a few of the Veterans here and for others it's a means of staying up to date with things in the world. The cyber lounge is there to bring interesting topics that aren't worth a huge debate on and are often half-serious. The anime section is to look at and wonder which anime to see next, which were the best, what just came out and physically demonstrates the hidden passion of everyone who joins up, what sparked their curiouslity in this forum and partially made them interested here.
I think most of the Veterans stay because of the good times they've had with other members and come here to relax. The newcomers come because they love anime and forums are good places to find people to relate to. But those who have been here for a month or maybe up to a year, they will go on another forum, leave forums altogether or consider staying here since they had a good time.
I'm not certain if it'll boost registration of new members and keep the people from leaving, but I'll be sure to give more explanation if I remember to look back here again.....I just hope I well explained the situation here....gotta go, someone calling me.....XD