er - what info would they base their decision on? you have a lot of online friends? :S you dont look to great on a photo? when your drunk you do silly things?
honestly if they are using that then they could be possibly turning down really good candidates. people keep their personal life seperate from their work life and its of no business of work to dig into their personal space. Even as a judgement of character - a profile online in no way reflects your real life personality or presence. I have put up some really wacky stuff in the past, but Im more mature than most. I will leave this post with the classic.