Well on my server people can type /bukkit:me and then spam the server with the messages and i dont know how to stop it anyone know how to fix?
If you're using a permissions plugin, use negative permissions ("- -bukkit.command.me "). That'll stop player's in the groups you want from using the command /bukkit:me. Negative permissions might work differently on different permissions plugin, I haven't looked into that.
That does not work...the /bukkit:me command bypasses all mutes and advertising prevention plugins. Besides that is not a permanent solution. This will work You could also make an Alias of the command with SimpleAlias or the bukkit.yml file(I believe this is where you create aliases)that just links to the /me command. Then if someone does it...it will do the proper format...or deny permission! Be aware that you can do other things as well...I think most chat functions have the /bukkit: enabled on them. The one that comes to my mind is /bukkit:msg which is all white format of the whisper function.