I've seen this weird add on BZP for some dating site. (Google adds, you know... sometimes they just don't seem to be BZP appropriate, although it's sometimes funny when they advertise hammers of flamethrowers...)

Anyway, it's main statement is "We delete members unfit to date."

Now wouldn't that be a moral drainer if you were one of the members deleted.

"Hi, I'm a single college student. My hobbies include surfing the web and collecting Lego toys..."

"Sorry, you are unfit to date. Deleting."

At least that's my interpretation.