* Add a "Report" link to the footer of forums.
* Allow some non-admin users to view a private forum and its threads.
* Moderators and approved followers can see it
* Note: the endpoint to follow a forum won't let a user invite themselves
to a private forum. Currently there is no way to approve a user except
by also adding them as a moderator.
* Explore and Newest tabs can show these private forums if viewable.
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