No need to worry! You don't need to be a member to post a question in the "Guests' Questions on Nordic Names" section of their Forum. You just have to push the button with "New Topic" on it.
I've just sent your question, but it will be visible in the Forum only after having been approved by a moderator to prevent spamming. Now all you have to do is to check this page:
http://www.nordicnames.de/forum/viewforum.php?f=11.
(or this
http://www.nordicnames.de/forum/viewforum.php?f=3 if they chose to put it there).