The person authoring the Post-Open License (discussed in https://news.ycombinator.com/item?id=38783500), a paid shared source license in all but name, is the fellow they chose to interview about Gates' letter? How ... ironic. The reasoning behind POL and the growing number of shared source licenses is exactly the same as Gates' letter: developers deserve to get paid for their efforts instead of having their code shared without compensation. Both are a ringing endorsement of Gates' argument, not libre software and the Four Freedoms.