One of the RP subs on reddit required a disclaimer in every post, something like:

I am 18+ and so does all the characters and people involved.

I found it kind of annoying since posts without it would be auto-delete. Sometimes one forgets to add that.

But if that’s what it takes, oh well.

I think anything that hints to underage should be forbidden here.

I’d rather see OC rather than non-OC. For non-OC I’d do a google search lol.