Predicting future trends is impossible.
As long as people find a way to get rich quickly, scam projects will continue to exist, scam projects will exist according to our greed, and they will disappear when our greed disappears. So I don't think scam projects will disappear in the future, it's almost impossible.
There is no doubt that crypto, including bitcoin, is a risky market, so you should be cautious when investing in any of them and stay within your budget. Do not trust absolutely anything, remember that the higher the return, the higher the risk.
It's not exactly impossible, it is just difficult. I mean just to make it simple, if I say that bitcoin will go up in 2023 and you say it will not, then one of us will be right. This means if I say "x" will go up and you say "y" will, one of us will be right.
Do not think of it as just one thing, there are tens of thousands, probably even millions of people talking about crypto, and that means some people out there who are already interested in crypto and promoting whatever the next trend will be today. They will be right, that doesn't mean we all know what it is, we just know that there are some people out there who are promoting it right now.