I have thought tether was a scam for years. I am very deep in the industry. I now think tether is neither a scam nor a Ponzi scheme in the classic sense of the word (they’re not borrowing from Peter to pay Paul). What tether is doing is reframing what 1:1 collateralization means. Typically when we think of a fully collateralized stablecoin, we think a 1:1 mapping of dollars to synthetics. Tether is backed by ‘dollars…
Or in simpler terms, Tether is a crypto money market fund, combining the convenience of money market funds with the transparency of a Ponzi scheme. If you read even the little transparency they do provide very carefully, it doesn't exclude the possibility that they're lying through their teeth about their backing: the commercial paper is described as being valued at face value, which, combined with the extreme reluctance to even hint out which industry the commercial paper is in, is not reassuring at all.