Voted for Yes.

Yes.

But what reasons in particular can we think for StInc's stake to remain neutral vs any other miner account. Is it just a question of the magnitude of influence or is there more to it?

I would refer to the instances in which the stake has been abused to the detriment of the community for starters. dMania is one example that comes to mind.

I, personally, would be in favor of a tech solution for the the nullification of all premined stake. Think the early miners have had enough time to enjoy the advantage and its high time the distribution problem be addressed.

I believe could accelerate adoption especially to investors that have avoided Steem because of the centralization (perceived or actual) associated with a premine.