Changing CentOS in mid-stream

Yes, I want to discriminate between users who'd like to make changes, distribute those to customers and deny them to the rest of the community - for their competitive advantage. Which is a type of discrimination the GPL /already/ has!

Some users think they've found a loophole, that is against the spirit of the GPL and copyleft. (And I completely disagree with you that the spirit of copyleft /intentionally/ allows for corporates to restrict re-distribution of modifications by their downstreams - that's absurd, the entire point of copyleft is to ensure the recipients get the right to distribute!).

I don't get your point about hardware vendors. If you mean the likes of graphics vendors with closed blobs, they may well be in direct violation of the GPL already - that's not the case I'm talking about.

I sense I'm down a rabbit hole with you.