Also, to those of you who are just about to join the servrar: BUILD YOUR HOUSE CAREFULLY. Zenox packs a big ol' 360 degree cannon atop Reichburg (the "town" he spoke of in his latest post). It fires TNT, which is kind of ironic since the server is named "no moar tnt". I was unfortunate enough to have his cannons built AFTER my house was, and he blew the crap out of it. Luckily, Kybyrian was there to help, but to those of you building you houses, follow these guidelines and you'll be safe:
1. Build your house either very far away, or right up next to Reichburg. The cannon's range is pretty far, but I've a feeling Zenox won't let me measure it
Either way, if you choose far away, make sure where you build is far enough from Reichburg that you can barely see it on the "Far" distance rendering setting, but make sure you can s ee it a little bit so that you know where to find it.
2. Make sure you use "Stone" instead of "Cobblestone." It's much more explosion resistant, and all you have to do to get it is smelt cobblestone in the furnace. Do not use the following materials for anything but interior decor:
Sandstone
Dirt
Sand
Gravel
Glass (save for some windows)
Mossy Cobblestone
Wool (any color)
If you have these, they are great blast-resistant substitutes for stone:
Obsidian
Iron Block (unsure about this)
Bricks
Or, you can build a house under ground. If you do, make sure to dig the house about 10-17 blocks below the surface in the event of an explosion.
3. If you can make them, line your roof with Dispensers and fill them with arrows. This isn't really pertinent to the cannon, but in the event that Zenox declares war upon you with his Zombie Pigmen (like he did to me) you should be able to fight'em off a little bit. It's not going to decimate them, but it'll hurt them.
4. With regards to a Zombie Pigmen siege, if you want to hurt the Pigmen without provoking them to hurt you, use Flint & Steel to create fires so that they walk into it. The fires are temporary, so aim truly.
5. If you build anything, MARK IT WITH A SIGN TELLING PEOPLE YOU BUILT IT. This doesn't stop cannonfire, but users who have senses of honor will know not to grief it and/or raid it.
Following those guidelines, you should be safe from any hazards causable by Ops.
Real quick: If you see giant zombies and/or huge clumps of TNT, log off and wait a while. Too many of them can slow or crash the server, and you don't want to deal with that.
EDIT: Well, this post got my house blown to smithereens by Tyrant Zenox, so I'm moving FAR away from his cannon, his castle, and any property he owns. I advise many of you to do the same if you want to keep your house.