I think you will, with the exception of professional forums or semi-professional (like here if you are an author), see less people using their actual name as a screen name. In part because so many schools both college and K-12 (or whatever the rest of the world calls that) are pushing kids/college age not to use their own names, so that it doesn't come back to haunt them later when trying to find a job or whatever. So many like to post images or let friends post images of partying etc. Not the image to put forth when job hunting. Though lately I have seen posts about (I think so far private) schools forcing kids to remove their myspace pages or face expulsion. Supposedly all in the name of protecting the children. Yes their are predators out there, but quite honestly the ostrich syndrome doesn't work well. It does nothing to prepare children for when they actually might meet a predator.
Having gone through the ostrich syndrome myself, I have to agree. The internet is not teeming with predators, but you may want to not use your real name anywhere for your reputation. I mean, like Lowky said: if you're out to get a job, you can miss that opportunity by having put your name on a badly reputed site.
Nowadays, it's no different than working as the head of a government during a scandal involving high areas of that government: you can never hope to be re-elected to that position again.
Even if you use your real name on the internet anywhere, someone who wants to ruin you can simply add that name to a less reputable site. Then your employer searches your name on the net, and boom! This comes up.
There's a pretty remote chance of any of that happening.
But, all in all, the net isn't all that bad. It isn't teeming with predators, and usually is pretty safe. What I'm saying is, it's not a good idea to use your real name there. In essence, agreeing to what Lowky said.
