Meh, you think he is the only one capable of doing this? There are other people out there with similar amounts of bitcoin, I mean if he could destroy the market starting with only 2k, a few other whales could too and I'm sure many crashes happened that way.
Indeed. But this geezer knows nothing about Bitcoin and only has a task to complete. Your average whale knows the market inside out, what it can take, what it can't, and will trade accordingly. This guy clearly hammered the sell button until it was time for sushi.
There's no one else with this number of coins dumb enough to do this.