I am an American who has been very interested in all aspects of British culture for several years, and this is the first time I have heard of this. I am surprised that such a law still exists. Does this mean that people actually don't advocate the abolition of the monarchy in print? Do they openly advocate it otherwise? Or is this one of those archaic laws that stays on the books, but nobody bothers to enforce, but that no politician has the guts to try to repeal either? (We have a lot of them. Sodomy laws, for instance. 55-mile-per hour speed limits.) Can you cite some articles?

By the way, I greatly admire the Guardian, though I don't read it enough to really understand British politics.