The same thing is true for the vast majority of the Wikipedia edits attributed to the US Congress. Not only are most if not all of them written by staffers and other government employees who almost certainly not receiving any direction to make the edits, they're almost all innocuous spelling or grammar edits and a large portion of them aren't even on political pages.

I don't know if I'd attribute it to public service so much as boredom and personal hobbies, though. The headline, of course, is the same as in this case - that "the government" is making Wikipedia edits, with malicious implications - though there have at least been some cases of vandalism, probably by staffers.