if everyone piles onto 5:01 then I will vote at 4:55 and the overall curation for that post is reduced, then someone else clips down to 4 for their personal gain and before you know it 100 accounts are scattered across the 1st 5 minutes of any giant account fighting for the scraps of curation that even remain 
EXACTLY HOW IT SHOULD BE

now we get to slap the back of our wrists together and have ""curation"" on the most gigantic and well known always-voted super accounts without reverse auction penalty. It was bad enough that people thought reducing it to 5 minutes was reasonable, and now it's 0. Unless there is some brilliant detail I'm missing, then everyone that thinks this is a good long-term idea is completely deluded.

the reverse auction was much more than some shallow "anti-bot" mechanic
but maybe I am the deluded one, for thinking anyone would know that