I understand where you're coming from but anime cons freaky as hell brehnikkas will change your whole set up if you don’t put rules in place and top notch security in place.
I take my nephew to the San Diego comic con and it’s straight business as usual
Looking at this shyt u got comic con, porn convention, twerk off, rap video, worldstar hip hop all wrapped up to one
It’s like the brother who had his restaurant and chicks come in twerking and he had to set those ghetto hoes straight
shyt is terrible and nikkas up in here and even online thinking this shyt is acceptable but knowing damn well they themselves will not want to be around the ignorance

I think it's easy to assume these type of events are kid friendly, and I would probably grant that to a certain degree with a Comicon but generally these cons are mostly adults.
Then we gotta contextualize anime/video games/comics whatever. Have you seen the way some of those female characters are dressed?

So the twerk contests and shyt can definitely look a way to an outsider, especially given how new the idea of a black anime con is, but I guarantee you it's not as much of a deviation as you think. The anime geeks been about the freaky fukkery