I solved your little challenge two months ago but never heard back from you. Mine was the email titled "Worst JSON API ever", with the tongue-in-cheek snarky remarks about your upper/lower case tricks and string/array confusion and session limits.

So I ran my Python code again just now and noticed that it still works. Should I post it here and make you rewrite your challenge?

Just kidding! I wouldn't do that.

But I do think you should make a point of at least replying to everyone who solves your challenge, even someone as annoying and probably-not-a-cultural-fit as me. :-)