Personally, I think there is a strong argument to make for the value of America-style lax employment rules when it comes to startups, absolutely, but please don't bring those to Europe by gaming the system. Hiring people as contractors to avoid obligations is an age old way to game the system, and eventually you'll be caught and face penalties (unless you're smarter about it, so I guess my advice is actually: be smarter about it (don't announce it on HN for example!)).