Majority of person who have this ideas are those who are full time haters of Bitcoin, and that is why we need to be more careful when dealing with information from the media. Not all social media investors are fan of Bitcoin, some can even go to an extreme mile to give false predictions against the coin just to raise panic in the market for investors to sell their coin to create a dump in the market. But forgot that history has in time passed proven that Bitcoin is the best coin in the crypto network.
I called them speculators, it is has been their method, they are Investors or traders who purchase assets for short periods of time and employ strategies in order to profit from changes in prices of these assets.
They try to attract others through predictions, to buy these assets and once the price move up to their targeted price level, they quickly sell their asset or even dump huge supply to send the prices down to a very low price level.
I think that Btc has come along way, speculators are also always trying to play a scheme of bringing new investors and traders into the market but will close their positions once they have archived their targets in a short periods of time