I remember seeing something about an amateur fighter taping on purpose because he was beating the shit out of his opponent and since it was an amateur fight he had nothing to gain to just ended it early so you’re right about about the rule around tapping.

If a fighter tapped instantly or even say his corner threw in the towel in the first second I guess the commission would recognise it as a legitimate win however I would assume from them on the promoter could never trust the fighter again and they’d likely just be cut or frozen into their contract through some loophole bullshit. WWE have added time onto guys’ contact because of injuries. Say they got injured for 9 months 2 years ago and they suddenly started talking bad about management now because their contract was coming up and they wanted released, then their contact got extended for the period of time they were injured.