To be honest if they just wanted a fuck buddy (which is all they really want despite the "gentleman facade") they'd be better off just sending messages along the lines of "dat ass" to 100 random girls a day on POF.
Eventually they'd run into some desperate slag who'll sleep with guys for happy meals; granted she'd likely be on welfare, and have a high chance of being obese, but at least they wouldn't have to die a virgin.
When I was younger and stupider I decided to PM some chick some vulgar pick-up lines on POF and she invited me over to fuck the same night, and we fucked a few more times - she was suprisedly fairly good looking, but was a pot-head, lived with her mom, and was fucking 2 or 3 other guys in exchange for weed and booze since she was under 21.
Moral of the story is if these desperate chumps just wanted a fuck buddy who isn't in any way relationship material, they'd be better off just playing up the "Doosh B" method than the sappy emo poet method, since slags with so little self respect that they'll hook up with a guy on POF or FB don't even have the attention span to read long, cheesy emo-esque messages to begin with.