I like your approach to weighing the curators differently than on their SP, but I would prefer that to be topical, i.e. knowledge based.

As such the platform would assess the curators also on their own posts, and their success/failure, and base a weight on that, as well as posted content and comments (both weighted differently).

Only then will we come to a level where quality becomes the true weighing factor of the curation.

Why does this matter? The content spinner who focuses on posting about social media can easily hash out hundreds of posts a month, without knowing more than 20% and ever truly going in depth. Quora slightly tries to do this by making the bio xcerpt visible for each answer, even if one can make it specific to that answer. But it can make one think that replier's answer should be consider higher, and thus checked in extended view. Algorithmically we could achieve that if the concept is taken to a SMT and both contributors and curators are assessed on every post and its success/failure. Obviously, that requires an incubation period.

But it could lead to ultimately quality over quantity.

Otherwise, I like where this is/could be going.