[LukeShu]

Note that the FSF and the SF Conservancy have already been doing this, and recommending you do this, as part of their Principles of Community-Oriented GPL Enforcement.

https://www.fsf.org/licensing/enforcement-principles

> Community-oriented compliance processes should extend the benefit of GPLv3-like termination, even for GPLv2-only works.

> GPLv2 terminates all copyright permissions at the moment of violation, and that termination is permanent. GPLv3's termination provision allows first-time violators automatic restoration of distribution rights when they correct the violation promptly, and gives the violator a precise list of copyright holders whose forgiveness it needs. GPLv3's collaborative spirit regarding termination reflects a commitment to and hope for future cooperation and collaboration. It's a good idea to follow this approach in compliance situations stemming from honest mistakes, even when the violations are on works under GPLv2.