Ha! These examples are hilarious, but to be honest these threads aren't the first to pop into my mind when I think of the singles forum. I think more of the funny, totally random and sometimes ridiculous threads that you don't see in most of the other forums.
"10 ways to eat a taco"
"What's your favorite kind of cheese?"
"To glitter or not to glitter, that is the question" (love you MissCris!)
"if I won the lottery, I would _______"
"POLL: Are you a pirate, ninja, or platypus?"
"Forget marriage, I just want a chocolate fountain. Is that too much to ask?"
"Things that make you facepalm"
"dumbest questions people have asked you about your singleness"
"POLL: at what age should Lil_Christian be allowed to date?" (Popular consensus so far seems to be "NEVER - NO BOYS ALLOWED EVAR)