Posts with this tag have the artist's accompanying commentary from the original site posted (and, if necessary, translated into English). For untranslated artist commentary, use commentary request instead.
"Japanese commentary" is not a tag on Danbooru due to the frequency of Pixiv and Twitter uploads from Japanese artists. Beyond that, there are tags for various language commentaries that artists use other than Japanese, such as:
The following tags are aliased to this tag: commentaries (learn more).