on *:Join:#: {
  if (n0 isin $nick) || (no isin $nick) || (ill isin $nick) && ($me isop $chan) {
    /kick $chan $nick You are not allowed on this channel, $+($nick.)
  }
  Elseif ($me !isop $chan) {
   Notice $me You need +o, Noob.
  }
  Else { Welcome $nick to $+($chan,.)
}