Many people regret that they did not buy BTC while they first knew about it. For some, they did not sell BTC while they could.

For me, I got MWC & HEX for free from airdrop to BTC HODLers, but dumped them before they peak. I could easily make 10x of my existing BTC, if I held them strong.
What is your Biggest Crypto Regret?Don't buy it BTC when the price goes down and that's what I really regret, maybe this is also felt by other people too if I'm not mistaken.