[omegalulw]

It's hard to pull this off, if not impossible. A key attribute of proof of work systems is that the difficulty should be dynamically adjustable and that everyone has perfect consensus on what "work" is. Doing meaningful work, while admirable, puts the owners of those projects in control of defining "work" and adjusting difficulty, i.e., people in the loop. That's not trustworthy from a currency POV, no matter who the people are.