Earlier quoted context omitted.
Can you link one of these investigations that show that tether is backed more than 1:1 with the USD?
I will try to find it. I would also point out they hold excess reserves in Bitcoin. My guess is nobody can get them on not being 1:1 but this idea of AML violations as the attack vector makes a lot of sense.
Regardless of whether that is true or not, seems like a terrible idea. Tether doesn't need backing on the crypto side of the ledger - they can create new tether there. If there is a depeg, it'll be from a large amount of money flowing from Bitcoin -> USD or the like. It is highly likely that will correlate to the price of bitcoin dropping (possibly substantially in the event of a Tether depeg). So I'd expect the valuation of their reserves to correlate in a bad way with the chance of them needing to sell those reserves.
Presumably they're doing this for operational reasons but I wouldn't put much weight to it in a discussion on Tether's resilience.
Plus, being a cynic I'd treat that as evidence against Tether being fully backed. Crypto that Tether owns directly could easily have been purchased without any fiat money entering the crypto ecosystem.