FOR THE PLAYERS
1. Everyone agrees to hop off of Zone for a solid 3-4 months.
Go outside, hang out with a friend, call your Aunt who you haven't talked to in 7 years.
2. If you're emotionally attached to Zone and can't leave it for even a single day, think long and hard about if you're skilled enough to help develop for it.
If so, get hired and make sure that you're working on quality content that will help improve the game.
If not, face the facts, you are useless. But you can always go shoot em up on Era or Ol' West.
3. When coming back to Zone after your hiatus, the developers hopefully will have made some big changes that will better Zone. Be open minded and also, think about why you play Zone. The reasons why you play will help you to respond to the changes in a constructive manner.
Don't be a d***.
4. Repeat.
FOR THE DEVELOPERS
1. You are a team, realize that. If the case goes a little like this: The person(s) in charge are the ones calling all the shots, no 'if's, 'and's, or 'but's, then put pressure on them. Threaten to quit. You are most likely a volunteer, so you should have a say in what gets put into the game. More times than not, the things that a team comes up with together are MUCH, MUCH better than whatever the head honcho solely comes up with.
Follow through! If it's clear that you can't change anything, then leave. Don't say you will and then stick around. That's just weak.
2. Set up a time to meet, discuss what problems YOU think Zone has, address the main issues that the PLAYERS have, and come up with SOLUTIONS for them. It's important that you get your priorities in check so that the most important things actually come to fruition.
Graphics for gameplay > tileset > cosmetics
3. Hire people who are willing to put some real effort into the game. Fill them in on the team's gameplan and be open to their ideas too.
This leads into the next point...
4. Remember that meeting that was held? Hold regularly scheduled meetings to make sure that everyone is on task, and if you or the new guy has a really good idea, see if it fits in with the current plan.
If so, celebrate!
If not, make adjustments!
5. Repeat.