Many moons ago, this was mentioned …
A non-public forum, restricted membership by request.
“Anything goes”, all those <coughs> videos, discussions etc that we could all talk about easily whilst at meets but didn’t want to put “public” online.
Who wants it? Family friendly is great, but having seen what the kids of today are like, fighting a losing battle. So an adult type forum?
Dangerous? A no-recourse forum, post what you like, be as controversial as you like, expect insults etc etc