Somehow I feel these threads act more as an advertisement for the ponzi schemes than a warning for users.
Two different ways at looking at things. Me for example makes sure to look out for juicy information on these sites and post them all on the thread so anybody reading them will also read that and hence get a more in-depth idea as to why the site might be a scam.
If someone actually invests in 20% hourly, I can't imagine they don't know it's a scam.
Suppose you are a newbie who has entered into crypto. You know that bitcoin rose from 100$ at one time (good old days) to a 20k $ in a few years. Now someone messages you telling that they know how to make money like this rise of bitcoin and asks you to send your coins to this site. The average old aged tech-scared users will think this to be a jackpot and therefore send their money into the scam.
It seems simple and foolish, but it works. I remember how in older days scams used to say about few sats being trickled out of the network and those accumulated could make a lot of money and said that to be the reason why their "cloud mining" could make money. Such crackpot theories are enough to make a fool out of any tech-scared user.