I use my real name everywhere online. The reasons why are pretty straightforward: 1. It reminds me to be civil and think before I post. 2. It makes it easier for other people reach out to me based on things I've posted (I have a fairly unique name). Pseudonyms are relatively easy to 'decode'. If I wrote something particularly dumb, offensive, or stupid, and someone wanted to pin that on me, I'm sure they could given…
Use of real name isn't problematic as long as you don't have unpopular opinions. I'm not foolish enough into thinking that the work world is like college when it comes to free expression. My employer wants to be popular in the market place, therefore they don't want to be associated with unpopular opinions. If Gawker writes a hit piece on me because I held down an unpopular opinion in a discussion on feminism in tech…
As long as your viewpoints are completely aligned with the mainstream opinions held in your extended peer group, you have nothing to loose using your real name.
But in all other cases you never know when some HR minion thinks he became a data mining genius because he dug up some comment you made 10 years ago on a random message board,