Yeah theres a lot of people who doesnt even understand and know alot about bitcoin, for some unknown reason hates and against it.
And the worst case is that they're spreading false news against bitcoin and makes those new investors to hesitate.
They just believed in news which is sometimes biased and fake.
We cant stop them from spreading those stories because we cant control them. But i think we can give advice for those people who listen and doubting about bitcoin. If they are posting in Social Media which is for you is not true, then you can argue with it. That way they may know that they are in fault and shut them up. Also we need to say those advantages, benefits and possible risks to everyone and let them be judge if they would still continue investing.