Code:
alias whostaff {
set %s.search on
did -r list 2
who *!*@*.staff.freenode
}
raw 352:*:{
if (%s.search == on) {
did -a list 2 $2 - $6
}
}
raw 315:*:{
if (%s.search == on) {
if (!$did(list,2).lines) { did -a list 2 No Staff Found }
did -z list 2
.set %s.search off
}
}
on *:JOIN:#:{
if ($nick == $me) { whostaff }
}

that will who the staff when you join, then the raw events will only do that^,when you use /whostaff.