What a shit show this is? A person who claims he used a loophole in a site to steal money from other users... and users who ask the thief to return the money.
@FelErYun Show us a screencast of this exploit. Otherwise I say fake. And the reports you sent, why not publish them here (without the details) or on forum thread. FBC will quickly see it.
I think they are all fake... Except for a bunch of words, I didn't see any screenshots, transactions, or any kind of evidence that would back up their stories. There's a scam accusation section, if some members think they have been cheated/scammed in any way they can open a topic there and attach all the evidence they have. Without proof, no one will believe these claims.
I am not really following what exactly is going on but as you mention, anybody who got a valid complaint, post a topic on scam accusations with enough proof and details. I have seen mentions before of people who found a loophole but they were all fake.