It's a funny tweet but I'm pretty sure this is satire. Not a huge crypto guy but I used to follow Cobie on twitter and while he is a big crypto proponent, he makes jokes like this to poke fun at the ecosystem a lot.
Please translate for me. What did they do?
> so I shorted AXS with high leverage
> Within 24 hours I was liquidated because nobody else noticed the hack for 6 days and the price pumped instead
They lost their money on the short position because the price went up, instead of going down. Had other people noticed about the hack as early as they had assumed and the price went down as they had assumed, they would have made a lot of money.