I like this new UI which feels more updated and better organised in some details. I also like the idea of comments for a paper specially if the comments will be

I like this new UI which feels more updated and better organised in some details. I also like the idea of comments for a paper specially if the comments will be moderated (I suggest to take a look at how HN keeps the conversation valuable) and specially if the authors of the paper will engage there. Maybe you should plan to mark their responses in a visible way as maybe an answer will contribute with some context to understanding a paper. I followed on Twitter multiple debates between paper authors and their peers, most of them very valuable and I feel that they outcome of those conversations are somehow lost in the Twitter stream, not easy reachable and for sure when someone will read that paper will not find those conversations. One feedback I have is that I don't think science should be voted or the results be presented based on some kind of popularity. The results of science sometimes gives us an answer we don't like or don't want. But that does not make it (the answer) less valuable or less true.