I do not recommend doing something like this, after all the hype changes depending on what is hot at the moment, at some point the community could not get enough of icos, ieos, dex coins, privacy coins, meme coins and now the hype is in nfts and metaverse coins.
And I am sure that this is going to keep being true and in the future another new type of coin will appear that will produce massive amounts of hype, but which will produce massive losses to those that decide to try their luck and try to trade and invest in those types of coins.
You are absolutely right but on the other hand, if you just think short term, you can still make a lot of money out of it. There are always new hypes and if you can get early enough and you don't to greedy, you will big money. Offcourse, I would only do it with a small % of your bankroll as the risk is very high (high risks = high returns or huge losses)!
As long as people only use a small portion of their capital for this I have no problem with something like that, after all as you say the higher the risk the higher the potential reward.
However the main issue is that this is not how people see this, when they think of the potential rewards that they can get they get blinded by the numbers running in their head and decide to go ahead with such a risky investment with all of their savings, and then when they inevitably lose they try to find fault on anything and anyone they can think of, conveniently forgetting that no one forced them to invest in those useless coins.