And one more video which I think finally explains the whole thing:
Notice the difference between Eugene's apex and mine or Tomi's. Both
@Tomi and I take this corner as a late apex one which is actually the fastest way there. Eugene uses classic mid-turn apex which is a slower approach. The difference is quite big, about 4 car length, which is ~20m. So when he thought he was going wide enough it was the same line that I would normally use while entering the corner, and knowing that this is a late apex corner I was expecting him to be even further to the outside than he was as I did hope that he would let me pass there. But due to the big difference in our typical lines through the corner this unfortunate misunderstanding and the following contact happened.
This, folks, is why it is so much safer to simply lift off a bit on the straight or in the long sweeping corner like T3 (as the Porsche guy did) and let the fast car go ahead instead of going wide into a tight corner to arrange the pass. If you chose the latter you better make sure you're going really wide like I'm doing here:
I'd also like to say that I'm really sorry for letting my anger yesterday to get the best of me and expressing my frustration here in this topic, though I did try to keep it more or less sane and not jump the gun accusing people of doing bad things intentionally. And I'd like to apologize to
@Eugene Abramoff if that offended him in any way. I hope the whole thing is going to be a good lesson to all the participants and those who were keeping track of it if there're such people.