I see where billme is coming from. I don't do it here (because I don't comment much, because I mostly use https://hackerweb.app for reading), but I do it on reddit.
Once you've left enough comments, a motivated party has a good chance of identifying you based on the intersection of your (relatively uncommon) interests, various bits and pieces of the personal info that you tend to drop in comments etc.
I don't know who you are but please stay! You seem to have a lot to offer and in a very positive way.
EDIT:
When I wrote this reply your comment was at the top. 2 minutes later it was at the bottom of the comment section.
Looks like it was manually moved to the bottom of the comments by a moderator :(
But that's not what they said. Were you asked to use your real name? Nothing stopping you keeping to one, anonymous sounding username