Yes, it is a discussion board. But that does not preclude rebuttals or challenges to direct or unqualified claims, declarations, etc. Letting such comments stand assumes acceptance. Does it get snarky? Of course it does.
Yes, there certainly should be rebuttals against unqualified claims. My point is that such rebuttals should not include personal attacks. JimRob has made that clear many times.
Your post #2 did not include a personal attack. However, later you were personally attacked. Same has happened to me over the years, and I’m a bit tired of it. Personal attacks chill the conversation. And they go against what the boss wants.