So, in fact, there's no real way to "fix" the violation for a project like Linux. It could be done with FSF projects because they own the copyright too. But for

So, in fact, there's no real way to "fix" the violation for a project like Linux. It could be done with FSF projects because they own the copyright too. But for Linux it would seem the only way to enforce compliance is to make people aware that their licence will be lost forever, and the only way to make them care about that is the threat of legal action from any one of thousands of developers. Otherwise how else will compliance for Linux be enforced?