"Crypto-confidence scheme" sounds to me like the classic investment scam, where the user wires a transfer to a bank account and the scammers convert the balance to USDT.
Of course Tether had to get involved here, because it was legally required to, but I can't help but think why don't these dimwits use a more censorship-resistant cryptocurrency for payouts like BTC or XMR.
(don't get me wrong though, I am happy that their lunacy leaves them out of pocket)
When we thought that criminals are not that stupid, however, one mistake, and then all of them fall. Maybe they thought that Tether is a anti-government entity. That it will not help or aid them if they requested that those funds be frozen because it come from a illicit activity.
So I guess the next time that they are going to hit, or at least those criminals that might pull this stunt again, they will not used Tether again, but most likely convert it to XMR or BTC so that it will be harder to trace. And by that time they've broken it, gonna be too late as they already cash it out.