An interesting idea, but at the current moment it requires a trusted third party to take some of the funds and redistribute them in an agreeable way. Although having multiple competing sub protocols operate different curation levels would definitely be an interesting experiment to run if SMTs permit that sort of thing.
I'm all for experimentation and am definitely opposed to making protocol changes without real world data and empirical evidence to back them up. We've generally been too quick to jump onto certain ideas based on theoretical arguments just to see unintended consequences sneak up and make things run not as smoothly.
That's part of why I picked the front ends; they're already trusted third parties, or second parties, or something. Trusted middlemen. You're giving them either your keys or your auths already, except maybe for the few people using @yabapmatt's new thing. I'm not totally clear on how auths through that work. So there's not a whole lot of extra trust added there.
Also it's hard for anyone else to set beneficiaries.