Here’s the observation in question: https://www.inaturalist.org/observations/7716160
It’s difficult to get it to species, so there was a vote that this observation couldn’t be improved. However, this turned the observation into a casual one, since it couldn’t get to a species level. The only way I could get the observation out of casual status was to put in a vote that the ID still could be improved.
Is this a bug? This isn’t to dismiss the casual status, but there’s a lot of species that are impossible to tell apart by photos alone.
EDIT: Just did some checking and realized that casual observations can still show up as ‘Wild’, which is good, but it’s still confusing.