This is an interesting approach to take. I have taken the opposite approach by using my real name in almost all cases, and my name in unique enough that a google search will directly lead to me.

The benefit of using my real name is how what I say ties into other people that know me through other channels. Someone might read a post I made about a multiprocessor Arduino design, and recognize my name as it related to Subaru stuff. These connections, in the real world, are the primary benefit of social media in the first place.

There is a downside.. if I had something negative to say I have to give it some consideration given the easy linking. I'm not sure that is always a bad thing, but it isn't always a good thing either.