Users can't post proof of being scammed because not everyone takes screenshots of their bets.
Once you block them from accessing account they post about being scammed because up until then everything was fine.

I will gladly review your site if you can promise me my account won't be banned because of winning in the long run.
I play only sports, no slots and casino bullshit.

I will also document every deposit/bet/withdrawal.

Let me know if you will accept a winning sports bettor to play on your site.

Waiting for your response.