Of course, people can be dishonest, but nothing stops the same from happening with proprietary software. Cracks do and will always exist. As Louis Rossmann aptly put it, "If you choose to steal paid FOSS software nobody is stopping you, that's between you and your God."

While it's technically feasible for a purchaser to redistribute FOSS software, this act doesn't negate the continuous value a developer can offer. Think of it akin to a chef in an open kitchen; the recipe may be visible to all, but the chef's expertise in crafting and adapting the dish, as well as the dining experience provided, is what customers pay for.

In the world of proprietary software, the illusion of control is often just that – an illusion. Despite the efforts to safeguard against unauthorized distribution such as DRM, software licenses, verification servers, etc. piracy remains a prevalent issue. The key difference is that FOSS is upfront about this reality, building its model on transparency and trust rather than control.

Morally speaking, the FOSS model respects user freedom and fosters a community built on mutual respect and collaboration. It acknowledges the possibility of misuse but chooses to focus on positive engagement and the creation of value that extends beyond mere code. In this way, FOSS aligns more closely with the principles of intellectual freedom and individual empowerment, encouraging a market where ideas and innovations are shared and improved upon collectively, rather than hoarded for profit.

I shipped several android apps that were GPL licensed and FOSS but had in-app paid options. You could also download a fully unlocked version from f-droid. They were quite profitable and the statistics were surprising. Turns out people are willing to pay for good software