This section points out a valid problem with business models based on open source, but closing the source and requiring payment doesn't inherently solve the problem. In fact, closing the source, which is the usual means of enforcing the paid license, introduces another problem: the developer could be doing something nefarious in addition to requiring payment, and it would be very difficult to find that out because the source is closed. True, reviewing a large open-source codebase is also difficult, but not, I assume, as difficult as reverse-engineering a large blob or set of blobs. Perhaps processor architectures and/or operating systems could impose restrictions to make reverse engineering easier, but that would fundamentally be at odds with license enforcement. If only we could fix our species to guarantee trustworthiness.