Sun already has the coins to dump this chain into the dirt. He doesn't need an instant powerdown. Remember those 5M liquid coins he transferred to the exchanges that everyone said was an "obvious bribe"?

That was not a bribe. That was to make the insolvent exchanges more solvent, and in all likelihood, the exchanges owe those coins back to Justin. Considering he can't even dump 5M coins on the market I'd say he's doing just fine. That would crash the price too hard. There's a reason why Ned hasn't just sold out to the community via the exchanges.