Well, it is not so much about him selling the remaining 160k Mt. Gox coins he has in his wallet as about the fear that many, if not all, buyers of crypto now have because of him. It doesn't even matter if the price crash as of recent was actually due to his massive sell-off, though the evidence seems to be overwhelming. In fact, he may not even sell them at all, not a single satoshi, though this is unlikely given the circumstances, but people will still think that one day he goes nuts about selling these coins at any price, and then prices will be halved again extremely fast. Therefore, Bitcoin won't rise until these coins are gone for good, burned or otherwise disposed of, and people become confident and positive again.
I think it's confirmed that he sold big amounts at the exact times that we saw these sharp red candles, and they tracked the amounts coming from MtGox addresses... Mr Kobayashi is a direct attack on Bitcoin. Trace Mayer or someone with influence on Kraken should tell him to get the fuck out immediately, they need to go OTC, this cannot be tolerated.
if they cannot get their shit together soon, someone else will. A guy with that many coins with only one mission: to crush the market, is a target. He needs to go OTC and he needs go OTC now.
Even if he isn't dumping anymore, everyone is paranoid about until the japanese government makes an official statement about what they are going to do.