Commercializing open source software via Shareware

After several attempts at making money on his own software, Bryan Lunduke is going to release it on shareware, and then putting source code up on GitHub to allow the tinkerers and developers of the world to gain access to the GPL licensed code. This would mean that the freedoms of the end users are being respected while the traditional revenue models of closed source software development are being fully utilized. And he’d love to get comments from the Open Source world on this plan.