This was exactly my thought. It's also possible to create new URLs leading to the same resource through e.g. a link shortener like Bitly or a proxy service. Pus

This was exactly my thought. It's also possible to create new URLs leading to the same resource through e.g. a link shortener like Bitly or a proxy service. Pushing this further, would something that is not itself a URL but from which the URL could be recovered, e.g. a hash of the URL, be in violation? Is it transitive, such that a URL from one page linking to another page with the original offending link is also in violation? I'm not a lawyer but this ruling seems to open the floodgates.