Someone may have already thought of this, but it's up to the moderators to ensure that the skinners at Journeyman level and above don't enjoy an unfair advantage.
Specifically, a journeyman can submit a new skin, and it is automatically posted, and goes to the top of the library. A lower level skinner must wait for moderation (sometimes days) before his skin is posted. Further, a journeyman could continually make improvements in his skin, resetting the update date each time, keeping his skin at the top of the library. A lower level skinner cannot, because each attempt to reset the date results in a moderation blackout.
As is well known, being at the top of the library is a HUGE boost to download count compared to being on the 2nd page.
I'm not suggesting that Journeymen or higher skinners would resort to such tactics, but it is possible, and moderators either need to prevent it, or keep the queue empty so that the lower levels suffer no delay.
Since I don't do Windowblinds (and trust me, that's good for the community!

) I speak as a blissful non-combatant.