First of all, there may be a reason to the fact that Norway is not a member of EU?
Maybe we are some strange people that do not like to mingle with others? And maybe we dont like to be compared all the time to others? We like it where we are and like to talk in our own language between us in our fine little (but long) country.
I think the reason for almost none of the norwegian geoachers are discussing here is the fact that they dont feel like they have their "own space" to talk in. And when you have other alternatives, the Norwegian offcourse choose to do their talking in a Norwegian only forum. And since we now have a numerous forums popping up around in Norway in addition to the two big ones mentioned earlier, it is time to reunite Norway as viking king Harald Hårfagre did in his days, and get a common place for all Norwegian geocachers.
And as HundenHera says, we are starting that prosess now and it would be nice if the common place could be here at Groundspeak as it should have been from the start. But if that is not possible a big common norwegian forum will come forth either here or on its own server. To bad for foreigners if it should not be here.
The exact reason of why it is like it is today is hard to say, I am probably guilty myself since I discovered both this forum and the norwegian forums at the same time, and I choosed the Norwegian because it felt right at that time. The language was the main reason for me.