Would be great if you change HTTP fall back header (appears when someone requests unapproved page) from 302 Found to 301 Moved Permanently.
Why that would be useful?
- search engines
will never delete URL which returns 302. they will continue scan it over and over. so that will increase time for new and updated content crawl.
- if the unapproved page got any external links during lifetime then all weight of such links will be lost because
only 301 redirect do transfer links stats.