An additional concern about their stETH is whether they generating high yields via the dubious strategy of "recursive staking": stake ETH to get back stETH, bor

An additional concern about their stETH is whether they generating high yields via the dubious strategy of "recursive staking": stake ETH to get back stETH, borrow ETH using your stETH as collateral, stake the borrowed ETH to get more stETH (repeat). This is very sensitive to the stETH:ETH exchange -- there's some suspicion that Celsius is (or at least was recently) in danger of mass liquidation as the stETH:ETH exchange rate drifts downwards.