Many of those guys are scammers, but not all of them, Suppoman gives advices on holding some coins that will MOST LIKELY get more value, how much value? in how much time? people do not know. The temptation to buy a coin and then spread hype towards all the other people is surely there, because it means doing gains in a small time, but in the end only people are responsible for their actions, what they buy, when they buy it and when they sell. But you have to understand that in doing so when a person lose credibility and people stop following him, it is game over.

If you are a noob and bought CHC at 6.80$ then you made a mistake for sure, people should understand that the market works due to the people buying and selling, and that people always want to make a profit, so when people bought at 1$ and see it going to 6$ they are happy enough and start mass selling, and that is why the price drops so much. If people like you write and do videos to scream SCAMMERS and stuff like that more people will panic and keep selling.

I agree on one point, buying and selling because someone esle tell you to do so is not smart at all, and will most likely end in you losing money, you cannot trust anyone in the cryptogame because a lot of people will use you just to pump a coin and then make a gain out of it.