I'm under 10k rep on Stack Overflow, so I can't see deleted content. I looked at this question from a meta post. When I visit the question page, I get the standard removed for moderation reasons message. But when I visit the revisions page for the post I'm able to see the revision history.
When I attempt to view revision history of other deleted questions, I get a 404 page as I would expect. It looks like this question has an interesting history being migrated, a community wiki and protected/closed/locked. Is this a bug? Or is this question special somehow?