I closed the question because it is off-topic for Stack Overflow.
It had shades of the boat programming question, or more generically, it felt like a Joke Question. Here's why:
Starting with the first sentence,
I came across a cryptic jQuery and am interested to understand how it works.
O Rly? Where? Where on the internet did the asker come across that? Perhaps they could link us to it?
Secondly, what sort of programming problem are we solving here? The comments even say:
These sorts of posts are not new. It's not a programming problem so much as it is a puzzle that OP is curious about. I'm sure if he searched a bit and noodled around with it, the solution to the puzzle would be found. That's the point of a puzzle, isn't it? (Source)
And other commenters talk about the post in even less charitable (but no less accurate) terms:
@htatche, sharing what? It's a stunt post that isn't a specific problem. (Source)
Even those that wanted the question around agree that there's no problem to be solved:
@Andy I still think that this deserves to be here so it is shared with people, it is all about sharing and learning. (Source)
So that's problem number 2: This isn't an actual problem the user has. They "found" a piece of "code" on the "internet" and they want to post a question about it.
Other parallels to boat programming include:
The user created their account three days ago and their first and only question is about this code they 'found'.
What stops anyone from simply choosing a different character and posting an entire question around it? Where does it end?
To be charitable, I attempted to migrate it to programming puzzles (at best, it seemed like a puzzle). They rejected it because it doesn't belong on their site. If we encourage these sorts of questions, we'll soon have to worry about it too.