Турниры HeroesWorld Cup & World Cup - 2012

Spot on!
Rebel isn't just some player who suddenly appeared out of nowhere and started showing amazing results. He's been on the portal since 2004 and on this forum since 2007.

References to experience and tenure aren't really relevant here. Vitalik has played and won for a long time before he was caught. If you don't push it, you can maintain a good reputation for a very long time. Moreover, the practice of in-depth save analysis has only become widespread relatively recently.

In addition, it's possible that a player usually plays fairly, but under certain circumstances, they might be tempted to cheat. I don't rule out this possibility either. There are also cases where the map is revealed to balance the forces – if there's confidence that the opponent is also cheating. See the final of one of the Bay Cups, MikeSPb vs. Billy.

Personally, I wouldn't condemn someone who revealed the map while playing against Black. Of course, if they confessed to it themselves, rather than me having to figure it out indirectly, which would take a lot of time and effort.