Probably nothing. Had you shown proof of cheating at the beginning of this debacle - you might have been fine. But the way you handled it doesn't inspire any trust, what with spurious KYC demands and other nonsense.
As for StackGambler, assuming the above proves cheating (not sure TBH, chat screenshots are the shittiest form of "proof") he might end up with red trust too.
I am pretty sure it took this long gather the proof. It is not like Stack went Hey I got some hashes and won a shit ton of coins, Instead he thought he had gotten away with it so he cried and cried wolf every where spreading false statements about the owners and site.
Granted I wish not to touch on the second part of original post because it has nothing to do with stack cheating, but proof is proof. Stack is received stolen hashes and used them to profit cheating the site plain and simple. Why should the site or the owners suffer because of that?
I mean why didn't he just go hey this is fucked up and messaged the site and say hey some one is giving your hashes away. Probably would have made more that way instead it seems he is getting what he wanted. All the attention on him this time it just happens to be bad attention.