CGhost ...Wallpapers are one thing that just about everyone with a copy of MSPaint will at one time or another, try their hand at.
This means the potential exists for each and every one of the 2.15 million site members to inundate Wincustomize with myriads of walls. So without some checks and balances what is essentially a skinning site 'could' become a massive wallpaper repository [with the odd skin or two].
Because there is already a surfeit of wall sites on the net, preferential treatment is afforded to actual 'skins' vs 'wallpapers' [whether a wall is a skin or not makes no difference].
In the past, walls were moderated 'fairly' extensively....and one or ten complaints were posted, usually on a day ending in 'y'.
Now, with the option to have works directed to the 'Personal Pages' it means relatively fewer walls are 'rejected' outright.... which should be seen as a 'win-win' situation.
On the other hand, for someone with 2 dozen servers at his disposal is there really a 'need' to utilize a 25th?....