So this is getting a bit absurd, there is a lot of griefing and I accept that it is normal for Minecraft to attract a lot of griefing but some of it doesn't need to be there and can be fixed so easily.
Case in point the gigantic crater at spawn (some good players have fixed this though by covering the hole with dirt and bypassing the spawn restrictions via EE and IC2). Created by nukes of course and those nukes destroyed the spawn even with the vanilla restrictions. Nukes serve absolutely no purpose other than blowing gigantic craters everywhere and crafting them can be disabled in the IC2.cfg file under mods/ in the server. Incase anyone has built a huge stockpile of them you could also nerf them to make their blast radius 0 and make it impossible to place via plugins such as WorldGuard or possibly even EssentialsProtect.
NEI's serverside mod should also be removed since there's no admins to actually use the majority of its good features and it does have a fairly serious vulnerability. I believe it has been patched but the status of the patch is flaky at best it seems as some have reported that the vulnerability still works on patched servers.
Plugins like LogBlock should be added and configured. Moderators/admins should be available to actually ban people who break the rules. Just now a gigantic sky fortress appears to have been either nuked or TNT'd (or both) death and we have zero idea who did it and cannot peg it on anyone. If by some incredible luck we actually do discover who did it, then we cannot do anything about that since there's never anyone on who can do bans.
I appreciate that hosting Minecraft servers is difficult, Hydra probably has better things he can be doing and the vanilla server probably gets the most attention anyway but please don't ignore the suffering souls on Tekkit and perform some of the even basic changes that'll take a few seconds (such as disabling nukes).