Yura, since you brought up the topic of humanity, was it humane to use this bug against your opponent?
Judging by your text, you agree that this is a bug that should be penalized. The only debatable point is the measure of punishment – whether to deprive him of the victory or not.
The fact that he didn't violate the rules wasn't even discussed. The discussion revolved around the moral aspect.
What surprised me the most was not that he used the bug, but his behavior afterward. He could have backed down – said he was just joking around for the audience, and that's it, and now let's play again, so there are no hard feelings. But instead, he stubbornly insisted that it was normal!
Since the members of the Arbitration Committee have to make judicial decisions, I would like to see people with an adequate perception of the world in their ranks.
I wonder, why do you think your perception of the world is more adequate?