I don't know if there more dutch users here. I see in other languages forums. Maybye a idea also create a dutch section.
There is a Bulgarian and an Iranian forum with less than 20 posts each. I don't see any reason not to open a forum for the Netherlands. It might be difficult to estimate the number of Dutch users here because the Dutch are famous for their multilingualism and normally don't hesitate to converse in English. Some even speak German!