Comment 3 for bug 1394830

If the concern is to avoid letting their Pages be searchable by Google, another option would be to add a site-wide setting that adds the "<meta name="robots" content="noindex">" tag to the top of *every* Page.

We already add this tag to all Pages that aren't shared with the Public.

Additionally, this could be a per-institution or even per-user setting. LiveJournal, for instance, provides an account setting that lets you set whether or not your blog's content should be indexed by search engines or not.