The only coin that has benefitted from hodling is bitcoin. And maybe Ethereum and Litecoin if you bought in the early days when they were about a $1.
You're absolutely right mate, the only coins that one can hold and make some huge profits are the coins you listed, the rest altcoin projects are only out to make some money from investors and weak hands who dump early..
With the other alts, you have to understand that the only beneficiaries are the developers. There are so many coins, why start a new one instead of helping improve an existing coin? Because the developer wants to make bank.
First they launch their coin, and maybe do a ninja mine so they accumulate before everyone else. Or maybe do an ICO. Then a bit of hype to get ordinary people to buy, while the developer is offloading to the ordinary person. Then once the developer has made a profit, it all sort of dies away. Rinse and repeat. If you don't sell during the hype period, you become a bagholder.
Developers care less about the projects nowadays, they just build the project in order to get rich quuck, no one is passionate about building something different that will help the society, that's why holding altcoins with no unique use cases is dangerous to our portfolio, also projects that pre mine coins are dangerous to hold cause the team have alot tokens to dump on normal people,holding altcoins is just something else honestly, no Pont holding if you don't know why you should hold that coin.