I don't care about rifts in the community, I care about practicality, and this seems like feature creep to me. This was founded as an explicitly OOC board to dump all the IC/OOC crossover baggage. Adding IC boards seems, to me at least, to jeopardize that wall of separation.
Yes, the IGS blows pretty hard at times. But I suspect that IC sections here would create significantly more work for the mods, because a lot of our characters just aren't going to be polite to each other. Without a straight-up admission, how do you distinguish an OOC 'your RP is wrong' comment that's just made IC from a completely IC comment by a character that seriously thinks yours is mentally unbalanced? You can't tell me it's obvious, because it's very often not, and the moderation discussion board would blow up every time somebody got modded on those grounds.
The only way I see to do it is to be incredibly strict, even more so than we are now in the OOC sections. But then you risk choking off the inter-PC conflict that drives a lot of this game. And what's left then? Corp announcements?
One more minor issue, what about alts? Obviously we want to avoid sock puppetry, but what about people with legitimate alts that they RP with? Are they going to be posting under their main's name and just signing it with their alt's?