This is why it's a joke: this page is a generator of keys. Every time you load a new page, it gives you another set of possible keys.
If you look at the top of the page, when it says "Page 1 out of 904625697166532776746648320380374280103671755200316906558262375061821325312", you can get an idea that this is not that useful at all. Clever.
I bet the creator hopes that panic will ensue, and that he/she can buy some extra bitcoins at a lower price. I might buy a few now, shouldn't be a bad idea. :)