I had my same Reddit account for like 12 years and never got harassed, though someone who knows me in real life could recognize me from it, and I’m sure with some minor effort I could be doxxed. But I try to avoid associating my real name with my username, don’t post photos of myself on it, etc. I don’t doubt it’s possible though, and I’m sure something like that would prompt me to change all instances of that username.
I had my same Reddit account for like 12 years and never got harassed, though someone who knows me in real life could recognize me from it, and I’m sure with some minor effort I could be doxxed. But I try to avoid associating my real name with my username, don’t post photos of myself on it, etc. I don’t doubt it’s possible though, and I’m sure something like that would prompt me to change all instances of that username.