And interesting project by these artists - yet for me it seems clear that some of these artists have clearly missed the point of creating "the worst music on jamendo".
Creating music that is arhythmic or polyrhytmic or makes use of aggresive sounds and noises does not necessarily make that music "bad", just the same as creating easy-listening pop tunes does not necessarily make the music "good". The same is true if the result is intelligent satire.
Yes, there are tracks that do really completely suck - like "the president has fragile x...", but on the other hand, e.g. "Birth of the Bad" would have come out a good and enjoyable tune, had it been made a little shorter (roughly 1:20), and I had to laugh a great deal about "La ballade du Chimse".
Giving a rating to this is tough, though: if I had to rate how it fulfilled the promise of the title, the rating would be a 1 or 2. However, due to the fact that it's really fun, and sometimes enjoyable music, I just ignore the goal behind this project here...