Instead of accusing people of being pretentious, you could instead just ask what they meant. You might get a better response as people aren’t obligated to respond in kindness to insults.

My original comment was asking “What do you mean?”. I asked someone else what you could have meant and they explained it as “It means if you have to ask whether something is ethically okay than there’s a strong chance it isn’t”. You could have just explained the expression.

Your comments in this thread like

The point I made which you missed, is….

didn’t really help my opinion of your tone. People are just trying to discuss the topic.

Either way I think my thoughts are inline with @[email protected] when it comes to that and it was in a parallel thread with you so I won’t bother rehashing it.