What ever investment it is, you should complain only on yourself. The same about investors. Of course there are lots of projects that appeared to be scams, but any kind of investment is a high risk. Just do researches before investing your money and choose highly reputable exchanges like Binance.
That's what matured people who understand the risk do, they don't seem to complain letting the public know, that's a sign of immaturity.
In crypto when we are investing, we might fail or succeed, that's why its necessary to learn how to manage our funds as that's the only way we can survive here and we might end up successful.
Though we will not make a big profit but being profitable is already a good achievement.
Slowly but surely, if we can do that, we will always appreciate getting involve in this risky venture.