Their migration from Prime Trust to Fortress told me all I needed to know.
“Throughout our relationship with Swan, Tether has consistently acted in good faith, supported mutual business objectives, and adhered to all relevant agreements,” Tether claimed.
“Conversely, Swan has acted recklessly and their actions have resulted in significant breaches by them of the agreements between us. Consequently, we have been compelled to take necessary measures to protect our investment.”
https://blockspace.media/insight/tether-sues-swan-bitcoin-in-ongoing-bitcoin-mining-dispute/