Meh. If a determined person or group wanted to scan through everything I've ever written online and put it together with me "in real life", nothing is going to stop them. It would take a savvy person just a few hours, at most, less if they were a professional investigator. I'm not going out of my way to advertise my activity, but I've been around tech long enough to know that, unless I take plenty of precautions that I never ever forget about, the web is a big old public swimming pool.

So, I guess part of me would be flattered to find that I was worth someone's time to look into, and part of me would wonder why they didn't just ask me what they wanted to find out. And as far as privacy goes, I think of it the same way I think of someone bothering to hack one of my cameras - if they manage to do it, they deserve every unsavory thing they happen to see.