There is a huge difference based on your start point.
Someone who puts in 50% of their wealth is weak hands.
Someone who puts in 5% of their wealth and allows it to grow to 90% should be strong hands, especially if they have already taken out twice their original investment in profits.
Agreed, partially. Even if you did put just 5% initially or even 1%, when crypto grows to over 90% of your total net worth and you know it is enough to "retire" and you see it dumping to one third.... that hurts.... let's just call it "sudden overinvested situation". That's also a thing.
Diversifying some is not stupid at all. And it makes you stronger hand for the remaining stash.