Jukka: The languege barrier is definately part of the problem, and the scandinavian/nordic/whatever forum could address just that. For those of the community who have a hard time reading and writing English. I don't think any of the participants want to exclude anyone from the subforum, but I do feel strongly for using Scandinavian langueges in the posts there for the above reason. I've voiced inclusion of Finns and Icelanders, because Finland and Iceland have many people who speaks one of the Scandinavian langueges.
So... Two good reasons for a subforum.
1) Geographical concerns/advice/community building
2) Inclusion of users who aren't overly adept at reading and writing English, but have a fairly good grasp of Danish, Swedish or Norwegian.