Maybe I missed something in that thread but could you please link me to the post where the owner of the site agrees that he actually hacked the site.

I think it is the case to intervene. Actually I had some delays in paying Hustler1984. Exactly during that period the estimable cheatedplayer attacked us and our balance went to his pocket. In the end I paid Hustler1984 the deserved win. I'm really sorry for what happened. Now wixiplay.io is upgraded and it will be much harder for our good colleague from bitcointalk.org, cheatedplayer to steal from us. I hope you enjoyed the stolen money.

Did not win. He just broke the site and stole from us over 0.5 BTC from the hot wallet. In the cold wallet he had no access. I do not understand why he accused us of scam when we were robbed by him. We paid all withdrawals every time. There were some delays just because cheatedplayer steal the money from hot wallet. He did not steal the users money. Users has not be affected by this.