As long as these sites are still around, no place is safe. Because it's not like there's a paid subscription to register to this site. You can register in 2 minutes and be a member. Learn the terminology in 10 minutes and fit in the crowd, wait a bit so your join date doesn't look too suspicious, then the questions start flowing in threads, then PM.
Plus on RM, the exact addresses are posted to almost every spa there is. So everyone knows where these spas are located. Anyone with half a brain knows what goes on in these spas.
So it's not like this is the da vinci code. Everything has been solved already. Just enjoy it to the best of your abilities. If a punishment is on the way to these places, there is NOTHING anyone can do. Even if everyone boycotted this site and remained silent.