This is just one of the things you have to put up with. Better players treating you like a bitch until you learn how to play chess. Don't look at this as a real opening, it is an insult on your honor compounded by you somehow managing to lose.
You already checked with a computer and I have nothing to add but my astonishment that you managed to trade off all of your more active pieces and walk into mate.
I seriously doubt that. I might agree if this was a game of two masters playing out some lost king and pawn ending but this is just club chess. Frankly you play a move like Kd2 to wind up your opponent and make him think more than he should. He might even get angry or arrogant and come at you stupid. Then all your weaknesses will soon be negated by some weird looking tactic that wins material. Honor, which I doubt is attainable in a board game, seems far from the point.
I remember many blitz games where after the moves 1.d4 e5 2.e3 I received many unpleasant remarks about my opening move. This was then followed by them losing massive amounts of material and disconnecting. These games required little to no effort from me since my opponents would often overlook tactics trying to "punish" me on move 3 and with the black pieces no less. I also found that by increasing my speed at certain points of the game I could even provoke bad moves from my opponent. It was like clockwork...
Anyway I really don't think it's worth it to get riled up over things like that.
You are still describing an insult. And the link the OP provided still involves him playing horrible chess and walking into a mate.
Yeah I stopped taking him lightly after the first game, like I said, all the games were played perfectly by him (only mistakes being in the opening). I actually thought he was a good player but then the computer analysis showed he is not making so much as 1 inaccuracy in the middlegames and playing flawless after around move 10. http://en.lichess.org/analyse/gutwb8ix/black