The data attributes they moved to Pro was mostly a result of watching folks use Datastar and seeing the anti-patterns develop. Those anti-patterns have been moved to Pro.

> If it's stable, no v2, plugins aren't needed, it's a 501c3, there's no shares, equity... what's the point of Pro? "The goal is to fund the work and draw a clear support boundary," What are they funding?

I assume it is because charitable organizations need accountants and other things (along with all the other stuff like web hosting and the like).