he could at least put up a buy wall so it doesn't go down any further
If I had his 400 Bitcoins I wouldn't do that.
Why not allow loyal CRAIG investors to buy it up cheap and why spend way more Bitcoins buying it up if you can get it for cheaper.
I would let the free market decide the equilibrium price and I would simply swoop in a few times per day and pick up a few large blocks, leaving enough cheap CRAIG for everyone else to buy some as well.
Cause if he does have at least say 200 Bitcoins, and a game plan, then there is no need to put in a floor. The price will rebound all on its own in a massive way once all the sellers are done dumping their CRAIG.
I think he has done just enough to instill confidence in investors so that they have no reason to dump their coins. I really don't get who is selling so much. Most devs who allow the price to collapse like this do it by not posting for weeks or months straight to fool people into thinking the project is abandoned.
But Pavel has not done this and he has stated numerous times work is being done and the ICO funds are still intact. I really think what we're seeing is massive manipulation by a few shrewd investors to buy up a lot more CRAIG for nothing. I would be buying all I could if I had the money right now.
Cheers!