13000 BTC means nothing in the crypto market or even in the BTC market alone.
These kind of news whenever the market bleeds means nothing, they just try to find that " why the market is bearish ", they simply forget the fact that this is how market works, waves of ups & downs till eternity, old news, nothing new about this.
You must be joking, 13000BTC means a lot, how many of the exchanges out there is liquid enough to 13000BTC sell other. The most concerning thing for me is how gullible are people that they fall so dip into this hole and the scammer was able to scam people this amount of money, people need to understand there is no free money anywhere