This is not a good trend

This is free software. No one is being ripped off if someone ships a modified version; it's the whole point of the exercise.

It's good when people can make a livelihood from their work, but sometimes they come to think they're owed one, and that's where the bad behavior often starts. FOSS upstreams are stewards of their projects, not owners, and should not expect to have ultimate say over how the code is deployed or used.