That's not completely true. I left it at ~18 k. A couple of years ago as i didn't saw a path to become profitable. I suppose a lot of HN'ers joined early on and left by now.

My stocks are doing good enough for me to not care at all about crypto since then. Even if that wouldn't be the case, I wouldn't invest in something that I don't think has a viable path.

Eg. The current solutions are using off-chain centralized transactions to fix core things ( eg. transaction fee).