Board Thread:Support Requests - Community Management/@comment-28947388-20170201182940/@comment-168424-20170201201027

You could create a catch all page called Unnecessary page and make the red links into new pages that just redirect to the Unnecessary page:

This should cause them to disappear from the Wanted Pages list. However, unless you have severe OCD, your wiki should always have stuff in the Wanted Pages list, if it's growing.