Yeah, the problem is that I wanna make a booru mainly for NSFW content.
From what you've told me and what I've seen in the support forum, booru.org actually kinda sucks. There's a lot of things that the top staff can't do that should be possible by default, like un-banning IPs (because banning them is permanent), changing between SFW and NSFW designation, or colouring/grouping tags without having to edit your CSS.
Isn't there another free alternative? I guess not.