Back in the last quarter of 2017, the price of bitcoin skyrocketed from $5,000 to $18,000. Most newbies and new investors jumped on that bandwagon and invested during the peak of its price. When its price dropped on 2018, those investors loss significant amount of money and they disseminate false information about BTC being a scam investment, etc.
So before you invest, understand first its technology and history. Purchasing an investment without even knowing what you are investing on is tantamount to digging your own grave.
It will be wrong to put all the blame on the noobs. I can understand their perspective. The media hypes Bitcoin (and the other cryptocurrencies) whenever there is a bull run. This is the time when a lot of the new users decide to make their investment with BTC. Unfortunately, this means that when they make their investment, the prices will be close to ATH levels. And when the correction phase starts, the mainstream media will just reverse their stance. They will publish articles such as "Will Bitcoin become worthless?" or "Is Bitcoin the biggest Ponzi scheme ever invented"... once again, the noobs will be influenced by this and they will do panic selling. This cycle repeats every 3-4 years.