Close Sourcing as Strategy

Today I felt really upset about something that I shouldn’t have to be. I needed to add a tool to an open-source project I’m working on, and after some searching on the web, I found one that I could use. But then I learned that the project had been moved to a paid service after being open source for a while. I felt betrayed and unreasonably angry, even though I understood perfectly why the developers chose to do this.