In recent times, some new ICO companies have been kidding about Bitcoin on Twitter, Facebook for their ICO promotion. I think this promotion way is very negative for Bitcoin. They showed that Bitcoin will be destroyed and their token will become number one. They have presented it in such a way that the price of Bitcoin will not rise anymore. I think this type of promotion is very negative in the market.
Probably it can affect the efficiency of the price value of bitcoin in the market. Because they always throwing negative informatiom about bitcoin for their own personal interest. Greediness of some ICOs is the main reasons why the price of bitcoin until now is very flopping.