way I see it, what you're doing essentially is inviting poets to share poems in a semi-closed space.
if it's a case your invitation extends to (sub-genres ?) threads can be posted to facilitate those:
A thread for BDSM (obviously you can word them with your own thoughts)
A thread for LGBT
you will keep dominion over the threads.
you'll find after a week or two the threads will mostly run themselves again, if it's a case a post doesn't fit criteria you can remove the post
also, you will have the option to invite colleagues to help you,
to be fair, I think you'll do grand.