Can't make money if people use your tool and are required to share their source code
It's companies using your tool that don't want to give back to the people
I don’t know that these are terrible things inherently, it kind of depends if he wishes to extract as money as possible from his users by any means necessary or if he’s truly trying to scale it so it can help people. All we have is this article and infinite speculation.
I personally didn’t find herdr useful, so I have no stake in the direction of what the author decides to do with herdr.
It’s fine to use these kind of tools, just don’t get too attached and be ready for the rug pull.