The general rule is keep it PG13. Actively searching for 'adult' roleplaying on a site with that kind of census is just bad taste if you ask me. I don't make the rules, but really. If that's your thing, why not search for a site that displays it proudly and openly? That seems a far better option than posting an interest check that says "Hey I want to RP bondage with you over skype."

Because seriously, we got minors over here and we have enough trouble as it is.