here is the script with a fix for the way around it by nick changing

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;; BotAbuse  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;by eqrunner ;;;;

ON *:NICK: {
  var %botabuse_count = $hget(botabuse ,$nick)
  if (%botabuse_count > 1 ) {
    hinc -zm botabuse $newnick 1800
    ignore -pcntikdu1800 $newnick
    echo -s ALSO IGNORED: $nick changed to $newnick on $chan at $date(mm/dd/yyyy) $time(HH:nn.ss)

  }
}

alias botabuse {

  var %botabuse_count = $hget(botabuse ,$nick)
  set %botabuse $nick $address($nick,2)
  if (%botabuse_count > 60 ) {
    .notice $nick is citing bot abuse. $me is now ignoring you.
    .notice eqrunner -IGNORED- $nick
    .msg BotServ ACT $chan adds $nick to $me $+ 's ignore list
    hinc -zm botabuse $nick 1800
    echo -s IGNORED: $nick on $chan at $date(mm/dd/yyyy) $time(HH:nn.ss)
    ignore -pcntikdu1800 $nick
  }
  if ($nick isop #) { hinc -zm botabuse $nick 15 }
  if ($nick ishop #) { hinc -zm botabuse $nick 30 }
  if ($nick isvoice #) { hinc -zm botabuse $nick 30 }
  if ($nick isreg #) { hinc -zm botabuse $nick 35 }
}

ON !@*:JOIN:#:{ 
  if ($+(*,%botabuse,*) iswm $wildsite) && (($chr(35) == $gettok(%botabuse,3,32)) {
var %botabuse_count = $hget(botabuse ,$nick)
  if (%botabuse_count > 1 ) {
    hinc -zm botabuse $newnick 1800
    ignore -pcntikdu1800 $newnick
    echo -s ALSO IGNORED: $nick changed to $newnick on $chan at $date(mm/dd/yyyy) $time(HH:nn.ss)
  }
}

it should work, im too lazy to use the whole script lol but from what u describe as the way to get around, it should work