An interesting primer on Tether, and whether it is a scam: https://www.zerohedge.com/crypto/what-effect-would-tether-be... (Yes, I know it's zerohedge, but this is a decent article) Tether usually has 2-3x the volume of bitcoin in any given day. And no one seems to know anything about how it works. So in my estimation, it probably is a scam...
It IS a scam and it is backed by nothing. Only to pump the BTC price artificially.
The unveiling of this scam was seen and covered a mile away and was a long time coming.
To Downvoters: I'm sorry BTC maximalists, but this scandal was waiting to be cracked down and no, it is not FUD, or whatever denial spiral you are going through.
Just read: https://twitter.com/smdiehl/status/1393669812220465162