Just to focus a point, since the feature has been discussed with enthusiasm with regard to certain other software. From v8.7, Tinderbox ziplinks support backlinks. As @mwra explains in aTbRef / Ziplinks:
Adding a backlink from the link target
From v8.7.0, Ziplinks can create backlinks from the destination note.
[[<that note>]]will create a link to “that note”, and then will append the name of this note to the text of “that note” and link the name back to this note.