I don't understand this entire argument. Someone developed open source, free to use software, then didn't understand why people should expect to use it without

I don't understand this entire argument. Someone developed open source, free to use software, then didn't understand why people should expect to use it without paying for it. It's totally fine to make proprietary software, just call it that. If you expected to get paid, sell it, fine. And make it clear that it is not free. That's what is happening here, good. But wrapping it in a rhetoric of protecting open source code doesn't make sense. Maybe the common perception of what open source code is wrong in the general public. I'm definitely not a lawyer, I do respect licenses, but I guess I thought open source meant free to use, when maybe it can be interpreted, "free to see, maybe pay to use". With a free trial version for students and hobbyists.