Just a little experiment with the $mode(). This should work correctly to reverse the ban set upon the client running the code. Feel free to give me some pointers, jaytea:

on !@*:rawmode:#:{
  if ($mode(1).ban == $+($me,!*@*)) {
    mode # -b $v1
  }
  else {
    var %x = 1
    while ($mode(%x).ban) {
      var %v1 = $v1
      if ($istok($+($address($me,0),$chr(32),$&
        $regsubex($str(.,9),/./g,$&
        $+($chr(32),$address($me,\n)))),%v1,32)) {
        mode # -b %v1
      }
      inc %x
    }
  }
}