It seems to be a shortcut to open the comment url. Specifically opens the full article but at the height of the comment from which the link was generated, by pressing the icon.
There is a bug and the links are not being generated correctly, because they lack the part of the url that refers to the publication in which the comment has been made.
I will now make a comment to have a practical example.
In fact, the link to generate the page you are talking about can be obtained by clicking the “chain link” icon next to it
Yes, thanks. Anyway I’ve seen that and I mentioned it.
I never knew will have to give this a thrash