Breaking the site guidelines like this will get you banned here, regardless of how wrong someone is or you feel they are. You may not feel you owe them better, but you owe this community better if you're participating in it.
Please can you illuminate me on what rule I actually broke, the OP was implying something about me that was unsubstantiated and in my view clearly nonsense?
"When disagreeing, please reply to the argument instead of calling names. 'That is idiotic; 1 + 1 is 2, not 3' can be shortened to '1 + 1 is 2, not 3."
"Have curious conversation; don't cross-examine."
"Be kind. Don't be snarky."
Note that if we go to your GP comment and take out the parts that break those guidelines, there's nothing left of it. That's a good clue, actually - it means you probably shouldn't have replied. The parent comment was obviously breaking the site guidelines and should have been flagged and left alone. That's another guideline in fact:
"Don't feed egregious comments by replying; flag them instead."
https://news.ycombinator.com/newsguidelines.html