My real name is on the book I published at DTRPG that's linked in my sig so pretty trivially easy to obtain. Luckily for me (in this instance) it's a common enough name that connecting it to the rest of my online identity (i.e. non-gane social media, work stuff, etc.) would probably be a bit more of a challenge. I know when I Google my name nothing related to the real me usually even comes up on the first page of results (which are dominated by a pro athlete with my same name). But mostly I just try to keep a sufficiently low profile and avoid controversy so that people won't feel the need or desire to dox or cyberstalk me. I used to have some anti-fans ~10 years ago who I occasionally worried might try to cause trouble for me if they were able to connect my forum ID to the real me (one guy literally threatened to come to a con I was scheduled to be at because he wanted to fight me because he didn't like my opinions on elfgames), but thankfully all of those guys seem to have lost interest in me and moved on to other, juicier targets.