In the US it's now illegal to annoy someone over the internet if you do not give you real full name.
http://news.com.com/Create+an+e-annoyance,+go+to+jail/2010-1028_3-6022491.html
However, everyone knows my real full name
http://news.com.com/Create+an+e-annoyance,+go+to+jail/2010-1028_3-6022491.html
However, everyone knows my real full name