I fear this would reduce LessWrong to referencing research papers. Perhaps there is more value in applying rigor as disagreements emerge. I.e. a process of going from two people flatly disagreeing to establishing criteria to choose between them. I.e. a norm concerning a process for reaching reasonable conclusions on a controversial topic. In this way there would be greater emphasis on turning ambiguous issues into reasonable ones. Which I view as one of the main benefits of rationality.