So there is (or was) this bug where it's possible for one user to have more than one trivia text attached to a specific location. Like in this example:

The bug probably appears if you move or pan the map marker at the same time you are updating the trivia text.

Is there any chance that you will provide a functionality to delete trivia that you wish to remove?

There is a panoId, mapId and contextId that uniquely identifies one trivia text. If you provided me with a DELETE endpoint, I would gladly make a tiny script myself that deletes the trivia texts that I do no longer want to provide.