[tuyiown]

Ha, but your are both right with the wrong behavior.

You're entitled to you tone, and your initial comment is valid, yes, but it's way to much assertive. Respecting people you're discussing with implies two things: strong assertion needs objective backup, opinions comes with deference.

If not, then, people feeling disrespected are entitled to their (civil) call for proper etiquette, whatever how it stings your ego. You both failed.