Yesterday, PubMed’s new comments system, PubMed Commons, went public. If you are staring at a paper from a journal’s website, it would be tedious to open PubMed just to check if there are comments on it there. Lazy Scholar now does it automatically, in version 0.7.5.
Here is what it looks like; the comment count is hyperlinked to the abstract.
As always, you have the option of turning this off in Options.