Some of us are tired of idiots running around our realms just being plain old annoying, and some are even GRIEFING, which is fairly easy if you have a Spleef arena set up (using the /spleef set command) since anyone can modify the arenas, whether they were granted or not. We really need /kick and /ban commands so we can rid our realms of these pests. At the very least, we should be able to kick people out of our realms if they're being annoying.