Speaking as a professional(-ish) developer, your real name being out there and attached to something you develop isn't only going to happen, but it's important. It's important for your online presence that people know who you are. If you want to be taken seriously and to have people find you, and possibly connect and work with you, they need to be able to find you. The more places they can connect to you on, the better. An actual Google+ page for an actual person? That's one of the big things they look for. If you want to be anonymous, just prepare to not be taken as seriously as you could be otherwise. It'll be difficult (near impossible) to make connections if you want to continue moving up or through the industry and remain anonymous, too.