Wow. I used to bet on ggbook before because they always grade the bets instantly and some users who share their esports bet on that subreddit use them too. I felt bad for the users who made so much profit from the site and couldn't withdraw because of this. Huge respect for those two mods that did their best to pay out some of the withdrawals from the site.
Its too bad that another "trusted" site has turned into a scam and run people's btc. I don't know if they could run after the owner and recover their funds. But I doubt the owner would simple show himself right now. Thanks for the OP for this reminding, and I hope that members here has not been duped by the website.