We've all dealt with players who can't grasp the complexities of sending Minecraft commands. This plugin lets you send commands as other players, a sort of runas command. It may baby them but it will save you headache. Surprised this didn't exist already, it was a 10 minute job. I probably won't add anything more but I'm sure you'll suggest anyway and I'll see what I can do. No, this won't run faster with MySQL.
