sadly, a nice idea that is painfully naive with how computers are used in reality.
One need only remember how easy it was to take over IRC channels with a few hundred bots to see the endgame of this rationale… it cannot be patched out, it’s inherent to the internet.
That which would make a vote valid; can (and will) be gamed.
It could work depending on how it is set up. Maybe only accounts with n-number of years get 1 single vote, and maybe don't let any random 2-day old account get a vote.