There was a lot of people margin trading since volume was huge, so that might have been margin call . also is no one ever supposed to sell or whats your point ?
I saw that too. After buying 10k CLAMs and not being able to withdraw them, I put them up for lending at 0.5% per day. They were very quickly taken up by people. The rate has since dropped considerably from lenders undercutting each other, so now you're better off staking instead of lending probably.
When you put up CLAMs for lending that is taken up not buy margin buyers but by people selling CLAMs short (i.e. betting on CLAMs dropping in value), which is something that has been happening a lot during this whole episode. Margin calls on short selling result in market buys, not market sells.
People
buying coins on margin will be borrowing BTC, but it is hard to interpret much from the BTC lending market since people could be doing that to buy any of the coins on margin, and probably most of that is the bigger coins like ETH.