Update: Here is a question specifically about the Jargon post: Can we un-delete "New Programming Jargon You Coined"?.
I understand that maintaining a very good signal-to-noise ratio is one of the most defining goals of the SE model. It may be the single most important goal. So I understand that it's important that the community and the moderators actively curate content to make sure it's on topic and of high quality.
That said, I recently found this deleted post: New programming jargon you coined?
Besides being one of the most fun posts on SO, it has 240k views and a ton of community involvement. Sure, there's no way it fits the guidelines for acceptable questions, but shouldn't this be the kind of thing that's left open in spite of that, as an exceptional case? I've seen "left here for historical significance" posts before, and in light of that, I can't imagine why this one wouldn't fall under that umbrella.
In any case, the system won't even let me vote to undelete because "a moderator has deleted this post". (Incidentally, that restriction seems kind of draconian in a bad way, but that's a whole separate can of worms).