Kenny Glenn The Animal Abuser - Encyclopedia Dramatica
As some of you may know, some teenaged fuckwad posted a video of himself abusing a cat on Youtube (reported on Digg and about a billion other websites). This was a critical mistake, because the Internet loves cats.
Withing 24 hours, members of the Internet Hate Machine discovered this fucker's real name, facebook account, myspace account, phone numbers, home address, relatives names and contact information, etc. Two people even went out to his house and took pictures. This information was forwarded to the local police and the idiot was arrested (even appearing on the local news). Also, incidently, several hundred dollars worth of pizza and other crap were sent to his house.
There are two key things to be learned from this:
1. Don't fuck with cats.
2. Don't piss off 4chan. They will ruin your life.