i) How is unlocking a phone circumventing copyright protection measures?
ii) Most people do not unlock their own phones, but take their phones to a service to be unlocked. Thus, they are breaking a law, but the service is more likely to be breaking the "commercial advantage or private financial gain" clause.
http://news.ycombinator.com/item?id=5109847
The earlier discussion got off to a bad start, in part because of bad reporting in the submitted source, an annoying problem here on Hacker News.