It used to be that when I wrote a note based on a Bible text, the anchor symbol would appear in ALL Bible translations. The result was that, if I'm reading a Bible passage years later, the anchor symbol would remind me that I have made a note about that passage.
Now, the anchor symbol appears ONLY in the Bible translation I happened to be reading at the time. Years later, I might be reading that passage again, but I would be aware of my note only if I happened to be reading the same translation as when I wrote the note.