I quite like the fact that whatever someone says on the internet now, the first comment is usually the best-argued counterpoint. It seems like a dynamic that could be brought to science quite well. I may not have the time to parse an entire paper in a field unfamiliar to me, but if I come across it and the top comment is 'there's a math error in table 6 that throws paragraph 4 into doubt', I can certainly verify that for myself. That sort of 'peer' review would make science much more accessible to the interested layperson.