This snippet Called Recognize, 2 know What nickname user did use be4 when they join da Channel
like that :
«10:27 am» * Joins: Nickname (ident@3912A91B.C139CAEF.DD493E3E.IP)
«10:27 am» « Nickname Has Useed:(4) nick cool blah loser »

on *:Load:{ /hmake recognize 50 | /echo -a Script Loaded - Ty for Using SweeTCooL Script, Recognization. | if ($exists($findfile($mircdir,reco.hsh,1)) != $null} { /hload recognized reco.hsh } }
on *:Start:{ /hmake recognize 50 | /hload recognize reco.hsh }
on *:exit:{ /hsave recognize reco.hsh | /hfree recognize }

Menu Menubar {
  -
  Recognize
  .On:{
    /.enable #recognize | /set %recognize.c $?="What color would you like the nicknames to echo as? $crlf CTRL+K brings up the color dialog. $crlf Hit escape to, NOT, set a color."
    if ($exists(reco.hsh) = $true) { /hload recognized reco.hsh }
  }
  .Off:/.disable #recognize | /unset %recognize.c | /hsave -o recognize reco.hsh | /hfree recognize
}
#recognize on
ON *:JOIN:#:{
  if ($nick != $me) {
    if ($nick isin $hget(recognize,$address($nick,2))) || (Guest isin $nick) { goto echo }
    else { //hadd recognize $address($nick,2) $hget(recognize,$address($nick,2)) $nick | goto echo }
    :echo
    if ($numtok($hget(recognize,$address($nick,2)),32) >= 20) {
      echo $chan $timestamp  $+ %recognize.c $+ « $nick Has Used:( $+ $numtok($hget(recognize,$address($nick,2)),32) $+ ) $Replace($gettok($hget(recognize,$address($nick,2)),$calc($numtok($hget(recognize,$address($nick,2)),32) - 20) $+ -,32),$chr(32) $+ $nick $+ $chr(32),$chr(32)) » 
    }
    else {
      echo $chan $timestamp  $+ %recognize.c $+ « $nick Has Used:( $+ $numtok($hget(recognize,$address($nick,2)),32) $+ ) $Replace($hget(recognize,$address($nick,2)),$chr(32) $+ $nick $+ $chr(32),$chr(32)) »
    }
  }
}
on *:Nick:{ 
  if ($newnick isin $hget(recognize,$address($newnick,2))) || (Guest isin $nick) { return }
  elseif ($newnick != $me) { //hadd recognize $address($newnick,2) $hget(recognize,$address($newnick,2)) $newnick }
}
#recognize end
alias recognized {
  if ($hget(recognize,*!*@ $+ $1) = $null) { /echo -a  $+ %recognize.c $+ $1 has not been added as another nickname. }
  if ($hget(recognize,*!*@ $+ $1) != $null) { /echo -a  $+ %recognize.c $+ $1 Previously was $hget(recognize,*!*@ $+ $1) }
}