I see massive instability. Say everyone votes on some matter on day one. If that same vote occurs later in time the results may shift, even if nobody sells any shares. So any decision taken by shareholders is time-specific. That doesn't promote long-term thinking. Rather, it promotes gamesmanship and trickery to ensure that votes happen when most advantageous to whomever is in control of the schedule.
Markets are not some invention that can be re-invented overnight. They are the result of a thousand years of contract law, codified recently but based on long-standing principals. Altering those principals to suit the desires of founders cannot happen overnight. Don't like it? Don't take the windfall. Don't go public.