I'm beginning to think it is an adult trying to imitate a child's handwriting. The individual letter themselves are fairly consisent and well-shaped. You would expect them to be sloppier, considering how uneven the baseline of the text is. When you can control the letters you can control the baseline, with the common exception of having writing "drift" on an angle.
Somebody who is trying to write like a child contrives obvious errors but overlooks the "automatic" stuff like letter formation and correctly doing more difficult tasks than the ones deliberately botched.
My money's on one of those liberal loonies that hang around outside Walter Reed oozing hate.