On a side note I use to talk to a guy I met on here back in 2011, he had the same mindset as you “hold “don’t back down, after mtgox crashed he went silent for a few months... Then his mother called me asking me if I wanted to attend his funeral.
Hey, I'm sorry for that
Just remember the golden rule in crypto (and investments in general): don't invest what you can't afford to lose.
As op said, and apart from sad events like the one of MtGox, not everybody has the strong hands needed to hodl. Daytrading seems difficult but if you have to go through a bear market, not selling is more difficult if you need the money for other purpose.