Hi Everybody, If <comment> has a compatibility issue, then we could use <comments>. It would be slightly shorter than <commentary> and it would be more appropriate to name a section with "comments". <comment> would mean a single comment and I understand this is not the purpose of the proposed tag.
If the ability to hide a section with certain semantics is an argument for adding a tag, then <comments> may make sense. I often read news portals, where many readers' comments are really stupid and annoying but I still start reading them. An ability to hide the comments sections from myself would be a great time saver ;) Thanks, Sergiusz