Feedback from supervisors and feedback from reviewers is what the current system is mostly based on. We're currently in a mostly-feedback system but it's disorganised, poorly standardised feedback and the feedback tends to end a very short time after publication.

Some of the better journals operate blinded reviews so that in theory "anybody" should be able to publish a paper if the quality is good and that's a good thing.

COMPare implies that preregistration didn't solve all the problems but other studies have shown that it has massively improved matters.