Except that they're using a uselessly vague definition of ad hominem that amounts to "any insult", which is extra stupid because we already have a word for that: insult. So why even use the Latin, then, other than to make yourself sound fancy?
You may also note that having a "word for that already" is also called a "synonym", and we don't accuse people of bait and switch, misrepresentation, being uselessly vague, and making themselves sound fancy because they say "synonym"
I didn't do that. I accused someone of using a cheap -- though fairly common -- type of rhetorical trick. It's a form of motte and bailey, which is itself a logical fallacy.
Is accusing someone of using a logical fallacy against the rules of HN as well? Would be ironic in the current context.