I dont fully buy the reasons for keeping the site private. It does nothing for your buddy but hides a potential threat from others. Places that out scams exist so people can share what they know and help each other avoid shady situations and seems better to put it out there.
Same thought.
From what I understand, they got the money back so case is pretty much over.
Got some news, kinda good. Convinced my buddy it's definitely a scam. It was Difficult, because he dropped 3K$ and got back 3,300$, so he's still skeptical. Not sure if the scammers will be satisfied with 300 bucks in the victim's account. We'll see.
Unless... OP's bud is still planning on putting in some more money to scammer's fake exchange hence the: if the scammer searched for the domain name and found this thread, they might know the victim's onto them statement. I hope I'm wrong though since this is some extremely risky thing.