In my opinion, it is still the quality of news that really affects the Bitcoin price, fake news spread by fudders will not affect the pricing, the question is what is the news? where it came from? Is it real? Most news affecting Bitcoin price are those news came from the government, those news that really made against the Bitcoin like banning from a certain country, declaring it as illegal and the likes of them.
The news are not affecting the price of bitcoin. Its just looks like that because it affects the minds of people that are investing and wanted to invest on it. Because of lack of knowledge about bitcoin, people are easily deceived by the news spreading on the social media and it affects their decision making because of the guts given by the news.