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What's changed is that once open source started getting serious VC's, people believe they've created tons of value, and should be able to extract some of it (in reality, the model created most of the value, not them).
In the past, people were just relatively happy to be doing okay for themselves while created cool software.
Once you try to move to "value extraction", things become a lot thornier because you discover you aren't as important as you thought you were - your attempts to extract value fail. Usually, because it was not you who created the value, but the model.