The drawbacks of the Two Person review process are that it is [...] expensive: $8 billion a year is spent on subscriptions to journals, which is money that coul

The drawbacks of the Two Person review process are that it is [...] expensive: $8 billion a year is spent on subscriptions to journals, which is money that could be spent on more research. None of that money goes to the two reviewers. The reviewers could do the same work for open access journals, and they would have (IMHO) no motivation not to do it for free.