I was confused by the writing style as well. It seems to be almost intentional. I wonder if it's a way of avoiding any style or nuances that could be attributed to a single person. Almost like a cut and paste ransom note.
ccc presentation: http://www.youtube.com/watch?v=-b0Ta9h62_E
EDIT: also as grumpysimon says, it's a proud tradition going back decades.
(I've some really horrible examples to my credit too, but thankfully I don't think any of it has survived)