The problem I see with just voting and changing your parameters, is that what you are doing is essentially no different than what the fiat money central banks do when they meet and vote on changing their interest rates and parameters. I don't think you should change your coin unless it is an emergency or something like that. Just wanted to say something, maybe give it some thought. The whole point of crypto to me is to have something that is all automatic and eliminating third party risk. I think currencies should be built and let their design play out, for better or for worse. If people invested thinking the coin is going to be one way forever, and it turns out it's not going to happen, you may have some disgruntled people. Hard forking an established coin is a very serious and big deal imo should not ever be done. Imo, by changing your coin you run the risk of the coin losing trust. Because it means ultimately the design failed, so you capitulated and essentially created a new coin. New parameters that was not established from the beginning = new coin. A new coin with pre-established distribution, essentially equates to being a full premine or ICO because the distribution isn't fair for people to find out about the change before any investment happens.   I would be very careful since (correct me if I'm wrong) these changes you are proposing were not part of the original parameter goal and disclosure at the coin's launch and mining phase.  
If you do something like this, how can you say the coin operates without oversight and control by banks or government, when essentially what you'd be doing is the same thing. A small group of people that is governing the coin is a small government but is still a government. Ideally, imo there should be no voting or democracy, it should all be hard coded into the coin and any changes automatic based on code without any human supervision or intervention.

Full disclosure, I currently don't hold any ZEIT, but I respect it.  Things like this make me hold off as well since things seem changeable and up in the air whenever.  Who knows what a coin will really be in 10 years, will it be changed for the better for sure? How do you know?  I highly recommend not changing a coin just to manipulate the market. It might backfire. Just my 2 zeits for ya! Took me some time to write these thoughts.