Even sites that may once have been good can go bad.They may be sold to a different owner who uses different standards or may engage in some of those shady practices to boost membership and use. You simply have to watch your back on any online dating site.
He asked to meet because he felt she could help him with the Askaran Amulet.
To answer your question: it depends on what you mean by legitimate.
Are you looking for an adult dating site that caters to adult encounters or casual sex, that isn't full of scammers or fake profiles?
Of course, new sites will debut that may or may not be of merit.
My first recommendation would be to try Lavalife's Intimate Encounters section; you sign up with them and then decide which of the three sections you want to be a part of (Dating, Relationships or Intimate Encounters).