Sell out your friends cheap
This seems to be common thread these days - the lack of any loyalty or morals and the ease with which any thoughts of right or wrong can be discarded or erased. It's much easier to sell your "friends" when the bulk of your interactions are via Facebook than when you meet them in the pub, face to face.
I'm starting to think that social interaction via the Internet is subtly corrosive in ways that are not easy to define.