Your post perfectly shows part of the problem, which is... you can give it, but you can't take it. If you're not prepared to give people the benefit of the doubt, why would you expect something different in return?
You're not going to get anywhere by throwing discussion questions at him like this is a school exercise.
You missed his point and he's gone.
Edit: Oh, don't mind me, I'm just dwelling on how you seem to be in some starry-eyed optimistic we're-all-in-this-together quest to "further understanding" in a pit of petty verbal combat.
He made extra posts after the comment you replied to. Furthermore, the exercise could've been used to further understanding. If the poster decides they have something to say in response, I'll take the time to read it.
