'There are often lots of little sections of a paper to discuss in detail, and I think it's hard to do that with a linear format of comments controlled by up and

'There are often lots of little sections of a paper to discuss in detail, and I think it's hard to do that with a linear format of comments controlled by up and down votes' I had exactly the same thought. Trying to think of a better way to handle this. Doesn't help that PDFs are so difficult to parse correctly.