you can suddenly change the total margin value of other margin traders, and potentially cause forced liquidation on some of them.
I hadn't thought of that. I'm getting to the point where it's difficult for me to enter and exit fully, but I'm not to the size where I'd need a huge wall to avoid a margin call. I also find it difficult to imagine people using margin when they have hundreds of BTC. I'll have to think about that and watch to see if there are sudden market orders when the walls disappear. I don't remember any, but I wasn't looking for them.
There's also a chance he's a big part of the support at 335k and is buying small batches while pushing down. I would expect him to split his orders more effectively to conceal them, though.
Anyway, whatever. I had no idea so many people were going to respond to me bitching about the bear whale. I'd prefer to just drop the subject.