Ban lifted. Next one will be permanent. Please read the rules carefully, and contact an admin for any clarifications.
Arguing semantics is not getting you out of a ban. The underlying point of the rule is to prevent flooding of the latest wallpapers section with very similar wallpapers, which clearly you did. We have banned users for flooding SFW pics too, where the entire series was [i]different[/i] models of cars. If they accepted the point graciously, I am sure you can too...or at least I hope.
You were warned once already about not uploading more than 15 images per set. You violated the rule again. Banned for a week. If you continue after that you'll be banned permanently.