Indeed, people have posted bounties for anyone willing to come forth with evidence that they have redeemed Tether for USD. No-one has claimed them (and, IIRC,

Indeed, people have posted bounties for anyone willing to come forth with evidence that they have redeemed Tether for USD. No-one has claimed them (and, IIRC, some are in the order of $5K USD, so not too trivial).