It's impressive how anyone can be "doxxed" these days. A few clues, each with a few bits of information, and soon enough you have a unique identifier.
But if you go around with your tattoos and face uncovered, and wearing uniquely identifiable clothing, any 4chan thread can find your identity in a few hours.
See: https://nymag.com/intelligencer/2020/06/what-its-like-to-get...