It's a start but eventually I'd be great to add some sort of payment layer much like bitcoin lightening. If running a node pays much more people would be willing to do so.
Hah, cryptocurrency still desperately hoping to identify a problem it can solve. No thank you.
Adding payments would just make sybil attacking tor profitable. And the same parties that install software to collect payments would probably be willing to run versions that double their income by reporting all their traffic to a third party attacker in exchange for payment.