I don't mind having my picture taken because, other than not being particularly photogenic, I pretty much don't do anything I'll be ashamed of...
It's kind of sad that people will get trashed, fall down, get hurt, nearly die of alchohol poisoning, barf on themselves, have sex with some less than attractive or less than disease free person, have photographic evidence of all of the above floating around on the Internet yet they never learn and will go back at it time and time again...