You can search for maverick IDs, e.g. https://www.inaturalist.org/identifications?category=maverick&taxon_id=46259.
There’s also something about searching for observations where most agree, some agree, most disagree, but it doesn’t seem to work quite the way I expect it to. Maybe someone knows how it works?
You can find it built into the search function for a single user’s observations, but I think it’s also possible to stick it in the identify URL, e.g. https://www.inaturalist.org/observations/identify?identifications=most_disagree.
