Mods fault for getting scammed?

So, I and my friend Polartrades got scammed by Stringcheese for a total of 150m. Everything was legit, he sent pm's, he showed proof of account, vouches, etc... But something wasn't clicking as he pretty much DEMANDED that since he "is a $200/svu donator, I wouldn't scam". After the scam, I got very into this scam he did, part of it being I was VERY upset as I've had it with these dumb scammers.
If you look up his name (swisscheese sythe) on google, somewhere in there you'll find Same issue back in 2011
Turns out the mods GAVE back the account to him? He simply just "got the account back"? Each message he was unregistered then out of random he has his account back?
I mean.. I'm confused, how did he get his account back?
I don't get it, how would he get his account back if the IP's didn't match up? Is it the first mod's fault for sending him manual recovery to his "email"?
I'm very frustrated becaue that 80m was pretty much my bank and is eventually leading me to quit 07 and sythe. I'm a donator on here, and I'm shocked as to how this could happen?! Do I get a refund out of this? -in no way being mean or demanding, but..HOW?!
*IN NO WAY AM I INTENDING TO BE RUDE, BUT HOW CAN THIS HAPPEN?!

 

The title kind of makes it seem like you're being rude. There isn't much anyone can do man