I'm surprised that happened...usually if you participate in an event where you already have the hat and win, you should get nothing because that's honestly kinda of a s**tty thing to do. I hate when people do that and don't feel bad at all for not awarding someone who wins an event expecting a replacement. You entered the event knowing damn well you had the hat and expecting to get a different hat if you win is really rude to the person hosting it and to the other players who wanted to win that didn't have the hat. so congrats on being a jerk lol.

As for Nanner's situation, considering it was a completely different hat he was competing for i don't get why he wouldn't get it if he won. Even if it was the same hat with multiple recolors i still wouldn't see the problem.
There's nothing i can really do about it though. I only wanted to comment because what Kai said really grinded my gears.