Oh yeah! Those daddy guys freak me out. I'd be fine with most people's kinks, or at least seen the creepy stuff online for a leisure activity (yay internet.)
I tried it once when I was newer and a bit desperate to get started, (Sorry to admit it, but yeah.) However I made the guy agree in PM that at the beginning of the private he had to say, "Happy 18th birthday, ready for Daddy?" XD
I just ban them now without attention unless they seam a bit bright with good grammar or something, then I give them one warning.