I think the main problem is that the incentives are wrong. Academics are mostly evaluated on the number of papers they publish in peer-reviewed journals and the

I think the main problem is that the incentives are wrong. Academics are mostly evaluated on the number of papers they publish in peer-reviewed journals and the number of citations they obtain. Therefore, the main incentive for academics is to sell papers and it doesn't matter whether the papers are true or not as long as other researchers and peer-reviewers like to read and cite it.