http://forums.spiralknights.com/en/node/1413
Nowhere does it say shadow copies are against the rules so if it's a player made up thing, don't back seat moderate
My suggestion thread is in the relevant forum though
You haven't told others to remove their shadow copies from the General Discussion. I was sad enough to check through the first 5 pages of GD looking to find your comment in each shadow copy.
Edited the title =)
Better?