I understand the reasoning is that these questions set a bad example, and encourage other inexperienced users to ask similarly inappropriate questions, notwithstanding the big "historical significance" warning at the top.
Would it make sense to lower the rep requirement for viewing popular, deleted questions? 10K seems like a good bar for access to moderation tools, but seems like an excessive requirement for reading through reams of popular programmer t-shirts.
Letting users with a mere 2,000 rep view these questions seems like a good compromise. Surely if you're trusted enough to edit other peoples' posts, you can be trusted to view old questions about programming jokes.