better to use a regex like this

on $*:text:$(/\Q $+ $me $+ \E\b/iS):#:{ 
  inc -u2 $+(%,hf,$wildsite)
  if ($($+(%,hf,$wildsite),2) = 2) {
    .ignore -cu60 $wildsite
    .notice $nick 9,1» 11H14ighlight 11f14lood 11d14etected9! 4Ignored 60sec9!
  }
}

or you could use

on $*:text:$(/ $+ $me $+ \b/iS):#:{