David Cuenca, 20/06/2014 11:18:
Basically the comments are associated to each paragraph, and a little number appears next to it. When clicking it, it displays the comments. I can imagine that it would also make sense on wikipedia, where most comments are related to specific points in the text.
https://www.mediawiki.org/wiki/Feature_map#1._Ratings_and_Reviews https://bugzilla.wikimedia.org/show_bug.cgi?id=46440
Nemo