It's not necessarily negative. Mainstream media will publish anything that will produce shock value and generate interest. They live of page clicks and tv ratings. I've seen on CNBC headline "why bitcoin will go to $100,000" and "bitcoin will go to zero" on the same page. They just want to cause controversy which will make people talking, and cover as many stories as possible. True, some media has agenda slightly leaning in one direction, other in the opposite, but in most cases, and among most popular outlets, they only care about their own viewership and income, not necessarily about the subject.