The positive news certainly will increase the investors to put more money in crypto, but the news must be legit and can be reliable, if we create our own news people wont be that easy to believe and consider it a hoax or attempt to manipulate the price, and this community is not too big, not all people will support your idea and not people is going to pay attention and believe your news
News in the financial markets greatly influences the value of the assets being traded so it is one of the most influential factors. If investors in the cryptocurrency market are sure investors are aware of the importance of news because it has a tremendous impact on the value of coins because most of the coins have relatively small trading volume.
Giving some bad information on social media, some others give some negative feedback with bitcoin and I don't know if this is their way so that some people will avoid it, but I learn these days that don't believe immediately to that news that is not yet confirmed.