It was pretty clear that with "fork" they meant "don't create a WinAmp-ng fork" and not a "fork" in the "send a patch" GitHub sense. It's fine to point out "hey, I think your custom written license may need a bit of work!", but the amount of vitriol and hate over it (including on HN) was just ridiculous.
It was one of those moments I was embarrassed to be posting here.
And yes, they could have done better, sure. But instead of bringing in someone in the community you just chased them away. Well done everyone. Good job. Excellent result. A story to tell the grandchildren.