[defrost]

There's a reasonable possiblity that Satoshi Nakamoto is a Nicolas Bourbaki, aka a small collective of shared creators that also have a shared key - meaning that all, or a majority, if still alive to form a quorum, would have to agree to release early coins, sign messages, etc.

There's a reasonable chance this was a case of "try this idea and see how it works out" that only grew because of early "hoarding" which was a deliberate strategy at the time and there is no current consensus on releasing any more infomation or coins.