So MineZ is public. Has been for a while. It's pretty fun but the public servers are full of douchebags. There is a player limit of 170 (175 but five are reserved for admins). There aren't many towns and the map is pretty small for that many people - especially since there is a huge amount of people and you all spawn along the southern coast. I actually posted this on Reddit, but it sums up what goes on in the public servers:
"PvP isn't the problem. It actually adds an interesting element of danger. The problem is the huge amount of people in each server and the amount of douchebags.
For starters there are few towns, a small map and a large amount of people. Towns are full of people ready to kill anyone that even so glances at them. Supplies are scarce - but not spread out. They are scarce because a few people have the majority of it and use it to kill others for the starter items.
The other people who don't have supplies either actually try to survive like you are meant to - or have given up all hope and turn the server into a deathmatch.
Again, PvP is not a problem. It's the people. I don't mind if I run into a bandit - cool, there's some excitement. But people aren't killing because they are trying to survive in this tough apocalyptic world. They are killing for the hell of it.
People who have maps, coordinates and get on the server first, take all the supplies and kill everyone rule the server. They don't care about surviving. They just need to find some food, and wait for their next victim.
People who kill just for the hell of it are a huge problem for people who actually want to experience the server for more than ten minutes. I like to think of them as greifers. Once someone sees them kill someone, they will react and kill them - and the process will repeat and there is suddenly a huge deathmatch going on.
People who actually want to experience the server, survive, kill a few zombies, maybe team up and make a friend are outnumbered and are easily killed off if they don't fall into one of the two douchebag groups mentioned.
If anything, there needs to be less people allowed into each server - and spawns need to surround the perimeter of the map; the entire coast. Not just the south coast, that makes it even more crowded than it should be."
Other than that it has a lot of potential and can be a lot of fun.