This is scarry. Have you ever tried typing your screen name in Google or some other search engine? Some times you get a lot of results back that are actually messages that you posted on various forums years ago.
I used to use my real name on other forums and when I discovered this is I stopped using it. Just by typing my name I was able to bring up my genealogy forum along with all of my family members and various other things like Book marks that I saved on BookMarks.com
So how many results does typing your real name or screen name return and how much of it is actually you?
Apparently there's a cop back east who is really into legalising Marijuana who has the same real name as me