I try to live up to that ideal in a way. I'm more comfortable with my internet handle than my real name. However, connecting the dots between a username with any decently long history and the person behind that username is trivial unless you go out of your way not to reveal too much about yourself, and even then, given enough time, there will be enough breadcrumbs eventually.
I've given up on preventing people from connecting the dots. If people want to engage with me, they can do it with my username in situ, or send me an email which uses that same username. If they're being creepy about it, I can block them and ignore them.
> unless you go out of your way not to reveal too much about yourself, and even then, given enough time, there will be enough breadcrumbs eventually.
This is why it's not reasonable (for the vast, vast majority of people) to attempt this, and why we have to be realistic about our threat profiles.
Sure, anyone who knows what they're doing and is dedicated enough can find out information about me - that doesn't mean I'm going to advertise my name and location so that everyone can find that information about me with ease.