I think people are dumping to create a FUD so others will dump to and they can fill their pockets cheap for the next bull run because I think the price of bitcoin will indeed reach 100,000 dollars and more but the only question is when... so those people want to make big bucks and sell for a fortune. If I had the money to do this I would do it aswell... but unfortunately I dont so this is more proof that we need more decentralized money... more people need to own bitcoin so nobody has so many bitcoins that he can dump it on the others... but this is just my 2 cents.