To use, just type /banac the message is optional. It bans the user from the room, and if the user is in any other room that you have op in it will ban him and kick him with the message if you put one.

banac {
  if ($scid($activecid).status == disconnected) { echo -a Disconnected from active server | halt }
  echo -a Banning $1
  var %b 1
  while (%b <= $chan(0)) {
    var %c 1
    while (%c <= $nick($chan(%b),0)) {
      if ($nick($chan(%b),%c) == $1) && ($me isop $chan(%b)) {
        mode $chan(%b) +b $address($1,2) | kick $chan(%b) $1 $iif($2,$2-,Banned.) 
      }
      inc %c
    }
    inc %b
  }
}