I guess not, they are just mediator. If the content that they serve is valid then that you think will be right, it means there is a main factor be it an adoption or crypto currency not a great place for an investment or a good tool to use.

But, if the content that they serve is not valid, I mean they are trying to make FUD and make all crypto currency price decreased then it will just for a while. The crypto user will buy more when its price is low, take a look when bitcoin touched $3500 they were a lot of people who bought it and make another all time high like now.