How is this allowed?

[Dakimakura]

I dont think you understood what i meant there.

No, I understand fully what you meant. I don't think the examples you provided were explicit enough to warrant outrage. They were suggestive at best, but again if you are supervising your 12y/o, they're not gunna get sucked into a night club ad in chat just like they wouldn't get drawn into a night club on the street.

Adults should be allowed to connect with other adults as long as they aren't being inappropriately explicit or obscene in public. The mere mention of "NSFW" or 18+ is not explicit, it's a descriptor/warning of the nature of the event.

Again it's not the job of SE's nor other strangers online, to baby-sit someone else's kids.