For what it’s worth, and I realize I’ve mentioned this elsewhere in the iNat forum before in the past, the Korean citizen science site/app Naturing requires all users to select an iconic taxon in order to upload their observations:
However, since the only taxonomic level coded/recognized on Naturing is species, it’s hard to know how much influence that requirement has on getting users to think about where on the taxonomic tree their observation falls apart from the first, general, taxon.