That's weird. I wrote Florian a mail and asked him about it. It makes no sense to me, because I recently have beta version of Türsteher adn Pumpernickel (I have purchased full versions) without any limitation and for me it does not look like that he will angering its customers. From all I can say he always tries his best for good service. Maybe it was a misunderstanding. Once I know more, I write it here.