@NeilBreen
From IMVU's database, sure, but I am pretty sure most of the outfit stalking programs out there are not running directly off of IMVU's database. They are running off of their own private databases that record outfits as you wear them, not just saved outfits, and they don't delete data just because you deleted it off of IMVU.
Our own outfit viewer only goes off of the default outfit, since that one can not be deleted.