I love how F-Droid marks apps as “proprietary service” but it’s misleading since every service in the world is proprietary (since you are delegating something to someone else) and honestly we know that there is no way to discover if the owner uses 100% Free software on its server-side.
Instead, what do you think about this new
Service monopoly (#Non-Free-Net)
This Anti-Feature is applied to apps that promote or depend entirely on network services that cannot be replicated with Free software.
Thank you for your thoughts!