Why do deleted items still show?

I created a bunch of hierarchical spaces and cut and pasted and deleted files between spaces. I now see that the deleted items show up on the All Updates page of the home space in red. Is there a way to setup preferences so that they do not show up?

They are coming up as red, after deletion to signify that they are deleted. When items are deleted they are moved to the recycle bin to prevent data loss by direct, permanent deletion. These deleted items only show up to people with the Manager permission given at the site-wide level (in the user management screen) because they can administer the Recycle Bin. To delete the items permanently:

  1. Click on Administration in the left bar to open the Administration accordion
  2. Click on Recycle Bin, the second last link
  3. Click on Contents to switch to bulk management view
  4. Select the items you wish to delete permanently
  5. If you have more items than what fits on a page, you'll also get a Select: All link at the bottom to select all items across all pages
  6. Press Delete
Note: there is no warning on the delete button on this screen.