provides a way for micro transactions to pay out mod developers.

No.

Absolutely not.

I'm sorry, I like the idea of mod devs earning incomes, but this just opens the door to too much drama, attention farming, infighting, and trouble. Every paid mod I've ever seen is a hot mess that cooperates with zero other mods.

Mods should all be Apache licensed, free, with prominant support/donation links and maybe paid cosmetic features. Or a DLC/update sponsored by the dev, if they want to go that big.