I don't know who this guy is, but he's working really hard to bring down the price.
It does appear that he doesn't have many more coins to manipulate since he is already decreasing the amount he puts on sale.
This might be a good signal. I think even those who bought at 100 made a good deal. There is a tiny amount of coins for sale compared to the bid sum. This can ramp up pretty rapidly in the next week.
Are you sure he's not just selling responsibly letting people buy from him instead of diving through the bids?
lol, I love it. Need a shirt: "Dear Bear, if you must sell your Bitcoin, at least do it responsiby"