The interwebs are ripe for sleuthing. Couple of Google searches and you can figure out anything about anyone. Everybody does it, including me. It is nothing worth bragging about, because I did not invent Google, neither did you. The only effective defense is to reveal less information online.
And the most efficient way to do it is to avoid proper nouns connected to you. And to be abstract and metaphorical so that no one can figure out what you are saying.