You don't understand sports betting.
Out of 6 sportsbook, I got response from 3 and all have a common complain which is GekkeBelg has connection with group betters. The group targets sportsbook which has less limitations and takes advantages of the odds.
the user is a professional value bettor. The group use arbitrage tools to target slow feed on sportsbook and then use rumors on bitcoin forum to get the money
There's nothing wrong with any of these things. Every respected sportsbook pays winning customers. Even if they steam chase and use oddscreen like Spankodds/Betstamp or whatever. The whole point of being a professional sports bettor is to take advantage of the odds, it's literally only way you can win.