Hello @conservancy - been spending a bit of time in the WordPress (GPLv2+) plugin/theme ecosystem & am amazed how most have "pro/premium licenses" (they use that term) on their code *in addition to the required GPL license*. They're all 'open core' rather than FOSS, from what I can see, contravening the GPL with an additional license. Is this something you're already aware of? Am I right that its a widespread contravention of the GPL? If so, is anything being done to redress it?