I have been betting on directbet from a long time now and haven't had any problems but just a suggestion directbet, since this is an on chain site, maybe you guys should provide a signed letter of guarantee when a new address is issued for betting, same way as bitmixer.io does, which confirms that the address provided by the site is indeed legit. I still think what happened is the user was a victim of a MITM attack, he was shown a fake page with fake address and he ended up sending btc to a hacker's address.

Also, this is an old thread, I wonder why he stopped responding to it when DB first contacted him, which seems a bit suspicious to me.