So I was thinking that if I wanted to post something personal it would be leaked to everyone, members and non members. So I was thinking maybe have something like [members]My secret info[/members] tag, making it so that only members could see the text in the tags.
Maybe also do this for ranks like [clraik+]text[/clraik+]?
Also for adult content, because somethings still leak out here, and it would be easier if you older people could post without worrying... [adults]Gross stuff[/adults]?
(I'm just not sure how you could keep it out of quoting code)