A lot of noobs have "Get rich quick" mentality, they don't really believe in Bitcoin as a movement for freedom, so when we enter a bearish market, they start considering the possibility that Bitcoin was a bubble, a fad, a ponzi scheme, which makes them reach conclusion that they have to sell to get at least a portion of their money back. It's really dumb because even if you are into Bitcoin only to make money, you should analyze its long-term perspectives and its technology instead of thinking about from purely speculative side.