That 'gift' from China is costing £1 million a year, so they need the donations, but you are right, not exactly voluntary, as many people don't look at these things properly.
Knowing how the British Parliament is about getting European law out there, I would expect something about this within a matter of a few months.
An example about how this is a good law, is the way Godaddy tell you how cheap a .com is, then you are automatically accepting 2 years, though the price was for 1 year.
This law wouldn't affect me, as I'm aiming at writers (books/short stories), and because so many of them don't understand jargon, everything is set out in plain English and nothing hidden away anywhere.