This is textbook gaslighting.

Well if I spent 5 minutes instead of 0.5 minutes I might be able to find an actual text book but I think APA Dictionary of Psychology: “gaslight” is a pretty good definition:

to manipulate another person into doubting their perceptions, experiences, or understanding of events.

And it provides an example, from the original source of the term:

a wife is nearly driven to insanity by the deceptions of her husband

It is tres shitty to minimize actual abusive behavior by applying a term associated with intimate partner violence it to this minor thing which is someone posting a comment on some software he works at using an account which goes to zero effort to obfuscate that.

In penance I decree you should watch the movie archive.org/details/gaslight-1944 and tell me if it’s any good, I haven’t seen it yet.