I don't think starting a comment off with "No" is an effective tactic to convey your point or change someone else' mind. It seems clear to me, as an impartial

I don't think starting a comment off with "No" is an effective tactic to convey your point or change someone else' mind. It seems clear to me, as an impartial third party, that there are merits and drawbacks to both of your school's of thought on comments. "No" attempts to shutdown the discussion and makes it hard to discuss these.