Don't know the quality of Norwegian comments on newspapers, but if it's anything like what happens in my country, I can understand them asking for full names. In short, stupid and mean, really mean, YouTube-style. Of course, a full name policy doesn't help. Even when the comments section is powered by Facebook, with most users having real names and being sort of trackable, you still get the same stupid and mean comments, because let's face it, a majority of us on the web are stupid and mean.

I'm really against nation wide policies, but on the other hand here we're talking about web properties. Personally I don't care when those shitty newspapers that I don't even read demanding full names. For one it's their right to do so. And also, as long as this isn't by law, it means that you always have alternatives and that's what competition is about. I mean, really, Reddit has 10 times more users than the population of your country and my country combined.