Yeah, I agree he went overboard, and his comments show that he doesn't like being called an idiot. Most people on this forum though have lost their temper once or twice (or more). This definitely should've ended at farah's comment. No need for more. Just chill.
I mean, i haven't got anything against 90 or something. He's a person and persons make stupid comments. My life is 90% (see what i did there?) making irrational or deluded comments. And when you see those kind of comments, you can have a bit of fun. No hate, just fun and banter.