I was banned recently for using xray. I had it enabled from my single player version, really my first multiplayer experience was on nerd.nu.
I completely deserved the ban, but figured I'd make a plea to have a fresh start and abide by ALL of the rules this time.
Of course catching xray is so important to the well being of a survival server. Mod is gone and won't be used again.
Cheers,
Pete