The responds and edits are simply unprofessional and immature. I don't hate AI and in fact I use it for many research based tasks, helping me narrowing a lot of tough topics, but it is the People with these kind of attitude turns me off.
I get why GitHub allows editing comments of other users though for public repos I guess it allows for this kind of abuse
Luckily, every edits are recorded in history, so they can't really hide their abusive behavior, for now. Even if they did, seem like there are often people faster in archiving their posts than they hiding their post.
Either way, ableism or simply abusive behavior, both lacks respect, honestly and responsibility, which is a sign of immature behavior. Mature people can be playful, but they know when to act in the correct time, and definitely not in something that lead to a huge PR disaster.
Thus, being immature is the root cause of all these bad behaviors, including discrimination.