The problem is that people are still investing without any research of each project. Thats why there are so many scams around, because, unfortunately, investors are even too lazy to read the whitepaper or to check the team members.
Of course it is only experienced by Beginnesr investors where they are only interested in the profit mentioned not with the products or ideas that the project will launch. in fact many aspects they can do to avoid fraud but they don't.
In crypto platform number of trust worthy projects also available in the market. But peoples are only concentrate the booming projects so how it will dump continuously is hard to said. So scam projects was reduce the people trustworthy and it will affect the some altcoins. I always concentrate the huge volume altcoins so those follow the same format it will make good profit.