I believe the solution is curated data models with the top members of the applicable field determining validity or a stack overflow model.

I think you're on the right track here, but will retain the same flaws ultimately this way.

Personally, I believe the models should be open and all interested parties have varying degrees of influence over the accepted truth. That's going to be a complicated in itself.

By limiting it to "trusted people", you only have to corrupt enough of them, and eventually you end up with the same shitty problems, but with bots too.