Post journal open access publishing _includes_ peer-review; see PLOS ONE, PeerJ etc. Similar problems as OP's have been noticed with non "post-journal open acc

Post journal open access publishing _includes_ peer-review; see PLOS ONE, PeerJ etc. Similar problems as OP's have been noticed with non "post-journal open access publishing model". That's generally called "science by press conference" now - the most famous case was the arsenic life paper, which was published in Science, a "traditional" journal, and then later retracted after their press conference before the publication generated a huge buzz (and two later papers contradicted their findings). This isn't a problem that's caused by open access or new publishing models.