100%, but the Federated nature would make this difficult, I'd imagine.
I'd love a way to simultaneously:
show someone I appreciate their comment
Help support an instance
Help support KBin development
But, outside of crypto, I don't see an easy way to make that happen and doing it through crypto would bring out the crypto bros and mega-anti crypto joe's in about equal numbers, which would suck (plus, who's to say that an instance admin even wants to deal with crypto to collect a few bucks).