Who it comes from is part of that merit - there's a big difference between some untrained person shouting "correlation isn't causation" when it was never implie

Who it comes from is part of that merit - there's a big difference between some untrained person shouting "correlation isn't causation" when it was never implied in the first place (ie every thread on reddit that references any sort of scientific article) and someone who has a deep background in the specific niche that the paper addresses. Peer review is to be done by one's peers, not some random anonymous commenter.