[azhenley]

That is an interesting idea. I would worry that it would have the "cliquey" problem that another commenter mentioned.

I do like the idea of having a public forum to comment on work, regardless of where it is published.

[fundamental]

If you add comments, then you get to the problem of maintaining comment quality which will likely lead to some form of moderation. IMO that leads back to the "cliquey" issue just on another level.

[mattkrause]

There’s Faculty of 1000 for this, though my impression is that it has gotten less active and opinionated lately.