Does anyone know why Yours.org doesn't support Moneybutton.…

I believe lack of resources, as he has stated that he is fully focusing on MoneyButton (small team of 3 people). Not entirely trivial to just swap the infrastructure out, even though yours.org is basically just an outdated version of Moneybutton.

Because we never fixed it to use MB. As Kakifrucht says, limited resources.

Thanks for the reply! Focus is very important, keep up the great work.

Maybe an experiment is in order:
Medium.com with an embed MoneyButton at the bottom? 🤔