hello @juanmoliyo,
I think there are two factors that affect the price of coins market is related to scams, the first is the markets are not based on the exchange of products and service, this makes the scammers with a small capital can raise prices and then let these projects abandon leaving millions of people without capital and the second way is with training, This is an industry that is growing and takes advantage of the lack of information of people to sell them training in which they promise them that they will be rich if they learn with them, these are the two big scams in the world of cryptocurrencies.