Anyone who's been paying attention knows that Tether is an opaque money-laundering scam, and it's only a matter of time before it totally unravels. The only reason Tether is making noises about cooperating with the US government is because they're being told in no uncertain terms that their continued near-term existence depends on it. Check back in a year.
Isn't that the case for every business operating in the US anyway? If they don't cooperate with OFAC, they will find themselves in deep doodoo very fast. Has nothing to do with being scam or not scam, it's the law and compliance is not optional.