Interesting, the GPL cooperation commitment. This was started by Red Hat. Why? Historically, it was considered a best practice in GPLv2 enforcement to take a cooperative approach when infringers were found. When they were first notified, the goal was to make it clear to help them come into compliance, not to sue them for money. Apparently, and unfortunately, there have been some cases where this was not the approach. Also, license reinstatement is made unambiguously clear in GPLv2. The goal of hte GPL cooperation committment is to unambiguously state that companies and software developers stand by the historic best practice for GPL enforcement, so as to add more predictability to how it is enforced.
20190116/https://blog.github.com/2018-11-07-github-joins-GPL-Cooperation-Commitment/
20190116/https://gplcc.github.io/gplcc/