If you search on 43Things you will get an answerset that includes tags that match your search criteria. If you click on the link for the tags, many of them will come back and say that nothing has been tagged that criteria. My interpretation of this is that a goal was tagged that criteria by someone whose account has been deleted, so that’s why it’s not showing any result when you click the link.
I’d either like to still see the original goals that were tagged that way in the link answerset, or remove the tag from the search answerset.