Hi,
Thanks for further clarification. I do appreciate the intent behind the licensing and that was clear before, so perhaps it would have been better not to bring it up, as I'm sure dealing with these questions can get tedious and grating.
My position is I've created some, what I think is fairly unique, web animation functionality that is useful for personal project work I'm doing, but which I think also has commercial potential, so I want to explore that (while also making it free for non-commercial use). But I want to avoid being in a situation where it doesn't succeed (maybe the functionality gets integrated into GSAP or another well known company duplicates it in their own product, or it's not as useful as I think it is. etc) and I'm $150 down, because for me, right now, that's a significant amount. If I do commercialize what I've made and it makes some money, then I would be delighted to support gsap (for the reasons your describe) - even if potentially on a legal technicality I didn't strictly need to. My intention is definitely not to make a wad of cash thanks in part to gsap and then not give anything back. I hope that much is clear now, and I'm sorry not to have elaborated my intention before. And I suppose if it did OK then I'd be in a similar position to you - in relying largely on trust for people using it commercially to pay the license.