Why is this getting upvoted? We should ditch Nginx because they are trying to build a sustainable business on top of their amazing OSS contribution? When quality OSS projects like Nginx turn into profitable businesses, that's very good for OSS as a whole. We should be cheering them and gasp paying them if we need their high end features, not abandoning them.
They want to compete with an established, mature free software project. You can only do so successfully in the long run if you stay 100% free(dom) software. Why don't they sell real adaptations (not basic features they actively deny) + support?