Moderators, what moderators? Oh, you dirty snake ratted us out...
Well, no point hiding anymore then - As the designated Guru Guy of the site, the first second thing I'll do is say, Welcome to the site!
Like the Milkman said, we're somewhat versed in all the genres you listed there(With sci fi, magic, futuristic, fantasy being the most prevalent) - as for the systems, we're mainly a free-form diceless site, but recently we introduced a very simple d6 die rolling system into combat or action scenes, so you could say we've got a bit of both there as well.