I agree that any aggressive towards the maintainer is unwarranted, even if I personally disagree with his move. In particular this comment quoted in TFA amused me: >Then drop it and let someone else maintain it. I want to reply to this person: then fork the last open source version and maintain that. That's the whole point really. Besides he apparently made the change two years ago and people only start noticing now,…
I also agree, being aggressive towards a volunteer maintainer achieves nothing and brings the possibility that he'll simply stops working altogether on it for free, like what happened with wiringPi some time ago.