Thanks to the efforts of all our translators (YOU guys!), we've now reached the point where we believe we can now make the site available in Dutch to non-translators: a change we're planning to make as early as next Monday.
This doesn't necessarily mean that all translations are complete or "perfect"; things will continue to evolve, of course! But we've come a long way!
(If you feel strongly there is any reason why we should not make Dutch optional for all users, please let us know in the Comments.)