Well, thanks for taking this into at least some consideration.
I have a coupe of quick solutions though:
On the flood of shoddy stuff: Perhaps in addition to a request, maybe a test of sorts to see if you're a good RPer. I've seen similar evaluations on other RP sites, although they're usually concerned with joining a clan. I think a similar idea could be applied to this, a quick little two-person RP that would cover the basics of what would be going in in this section. In my mind, it'd cover proper fighting role-play, description, ability to handle nasty, antisocial characters, and most importantly, CREATIVITY. Something of this sort would be head off most people who aren't serious about this. I'd more than willingly oversee it as well.
On the OMG s!ck @nd \/\/r0n6 bit-There will always be people like than, no matter what is done. The issue is if we can keep it to a reasonable minimum. Again, the test, acces to a blocked-except-by-request forum/subforum would head off the vast mojority of people who would say something like that.
Finally, on allowablilty-PC is growing up, we can't deny that. From my own perusal, it seems that a lot of our more loyal members are starting to get to the age where they become intrested in dark characters, the occult, death, vampires, all that jazz. Allowing them a place to get the feelings and ideas out might keep some of them here, instead of going to another, more adult and perhaps less accepting forum.