@Arkandel said:
It even has a diluting effect on other kinds of rewards - if I can get a Beat for 30 seconds' worth of typing an one-line justification and you have to run a multi-hour PrP with several players in it it's the same incentive being applied, but one action helps the game a great deal more than the other.
I know this. There is no perfect system. Sorry. There just isn't, and there never will be. That does not mean we should not install some sort of system, consequences known and damned. I will note that the reward for running a scene can be greater than what you'd get by fulfilling an aspiration or resolving a condition. And people won't engage in a behavior if the reward is too low.
Presuming that aspirations create RP, though, you are still engaging correctly in positive reinforcement. Giving people more for STing or participating in PRPs is a good idea. Cap your gain or make XPs cost more beats as one gets more XP, and that's about the best you can do to achieve balance.