This goes for any asset, manipulation via marketing and game theory is present in any market. People should always research the fundamentals and try to understand the thing they are investing in.
True but the problem with some people is they know what to do, they know the truth and they are wise but, the moment they hear rumors they are easily carried away and they forget the right thing to do. Either they rejoice and are excited too quickly with an unverified news they heard or wail quickly as they hear unverified bad news. Funny but I think it is an instinct in every individual.