evilbob
Adventurer
I think that's why people have been suggesting it: that seems like a decent way to work it.A system based off of DC only rewards better rolls or punishes worse rolls based on the actual skill level of the character. The more skilled you are, the more likely you are to get boons or major boons. The less skilled you are, the more likely you are to get complications or major complications.
And tying it into the normal d20 roll means nothing else changes or has to be adjusted. So far no one seems to have come up with anything substantially different. Which is fine - maybe there's not such a thing.