Honest question(s): what would happen if, let’s say, I discovered your alias and started publicly relating it to you? For example, If I knew your alias and mentioned it in this comment (or in a post on my blog, or as a comment in your google+ share), would you still keep using it comfortably? Would you have some sort of anxiety crisis knowing that people could go back to everything published by the alias and relate it to you? Do you feel discomfort by just reading this comment and thinking about this possibility?

Your solution sounds too risky to me, but I don’t suffer of this condition (at least not to such a degree), and that’s why I’m curious. :-)

Anyway, I don’t think Google will start asking for an official personal ID anytime soon, so as long as you don’t bring too much attention to this alias (to the point that people would start reporting it as fake), you should be safe.