You're interpreting GP's comment in bad faith.

He used the word "never". That's not a word requiring interpretation. And for finding this gaping hole in his argument, I'm rewarded by getting flagged.

People usually understand that rules can have exceptions, and natural language is limited in its precision.

It's a pattern for this user. Seriously, read their comments. I don't understand why HN tolerated that.

someone has different views than you. can you handle that?

“Not sure, sorry” is more my go to. Nothing illegal or inciting about ignorance and stupidity. And manners cost nothing.

What if they can later prove you were sure - maybe from your WhatsApp messages where you told your friend about the crazy shooting?