This is about a mock-serious website that highlights the infamous Vampire Hedgehog Hunters and their tireless battle against a growing threat to livestock, pets and ankles.
It invites you to add your own Vampire Hedgehog 'sighting', or tip for combating the bloodthirsty little critters. Now, there are no rules as such, but it presents an alternative reality, asks you to invent a character and then interact using that character. Sounds a lot like roleplay to me!

Here's the link: Vampire Hedgehogs

If nothing else, it's a really funny read. Look out for the comment from the trailer-trash redneck who thinks vampire hedgehogs stole his woman.