I've thrown my Spooky pins on there before delivery for no real reason, just because I like having my 'complete' line up shown... It's not like my 2 or 3 games are impressing anybody and I assume hardly anyone ever sees it, at worst someone I know IRL may be confused if I've received something already. I think of it the same as having an inoperable/project pin listed.
But like everyone's saying, I don't think anyone cares much.