P.S. -- Trotting out a novel opening for which the opponent is unprepared is not "unfair play" -- isn't that the idea?
The Brandon Jacobson matter
I should add that I started this thread before I had read this blog post about the anti-cheating system here:
https://www.chess.com/cheating
Also, I would agree that I have no standing to ask about cases that do not involve me.
So, what happened with that?
Was there ever a fair resolution or official statement about it?
Being called a cheater with a presumption of guilt when Chess dot com's algorithms and statistics are the only evidence of culpability doesn't seem fair to me.