This is what they say on their home page.
Now you can have a ready-to-post entry for your blog with just one click of a button. Our system is random enough that there's thousands of variations to the post that it can generate, so if you don't like how it came out, you can simply keep clicking until the generator comes up with something you find acceptible.How lazy can you get that you can't even be bothered writing your own posts?
Actually... to that I can relate.
But the thousands of variations remain to be proved: so far it's been sister/cousin/niece, with the relevant name change, and not much else.
Too bad. It might have been really useful.