Lots of people got scammed and existed this great industry. That s why I hate crypto anonymity and personally support any move which can end it and reduce the number of scammers around.
A lot of things affects the price of Bitcoin. Some time it affect in a positive way and sometime it affects in a negative way 
. The positive news about Bitcoin that is the developed countries like japan, Germany start accepting Bitcoin and many multinational company like Microsoft, Samsung, Amazon etc start using Bitcoin for their various purpose help to put a positive effect on Bitcoin's price. News about Bitcoin related with criminal activity and fraud news about Bitcoin make a bad impression on it market price 