Last modified: 2014-10-22 22:22:28 UTC
Under "Advanced settings" in the Page options menu, there are two items: "Let this page be indexed by search engines" and "Show a tab on this page to add a new section" that should never be changed for Wikipedia articles. (This will differ for other projects; both of these might be appropriate at Meta, for example.) Could these options be hidden at projects where they should not be used?
Do-able. Hard and messy, but do-able.