I don't remember seeing an "18 and over only" pop-up when I joined, so if I missed it, sorry!
But we should probably consider having one of those pop-ups for people to identify if they're 18 or over, before accessing the site. I know there are plug-ins for this on Wordpress, although I'm not sure about Wix. We may be OK if we're just talking about things, and not sharing direct links to cam sites (which we should also probably avoid doing, since we're under Wix's discretion to stay up), or posting sexually explicit stuff. But it's always better safe than sorry.