Well a lot of critics has come out to state a lots of rumours about bitcoin and in some way caused panic well that's among the newbies.
So said bit coin is a bubble just like tulips, some says it is a ponzi scheme and will soon be banned
Other where critical about it's security level and it's vulnerability to hackers well over nine years bitcoin still is the top coin in the cryptocurrency and those critics are still trying to purchase more bitcoin
What is the worst thing you have heard about bitcoin
I once felt that bad thing, I was once told to play gambling here and even I had been hit by it, I was not willing to say gambling online because I think bitcoin is an investment not gambling