there’s no need for test observations. there are lots of actual observations that get left off those 3 layers.
here’s an example of an observation that is casual because it’s marked as “as good as it can be” at the family level (https://www.inaturalist.org/observations/13311979):
note the location of the observation above, and note that it’s not on the taxon map for Calliphoridae (https://www.inaturalist.org/taxa/61860-Calliphoridae), even when all 3 layers are selected:
i think the question that ruperclayton was asking was somewhat rhetorical. i think what he’s really getting at is: Is it acceptable for the taxon map to provide no way to display certain casual observations?