For those of us who enjoy the process of sorting things into categories (i.e. identifying particular taxa on iNat), a bottleneck is that only academia is allowed to define those categories. I think the iNat community is doing this sorting at a scale never really done before, so we’re constantly finding the limits of taxonomy everywhere and wishing taxonomists would move faster in resolving this or that ambiguity. Processes like describing species and defining infrageneric groups can be pretty tedious and may be low priority for academics, but they have a big impact in terms of whether or not we’re able to separate distinct organisms.
In a particular hover fly genus I’m interested in, the nearctic species are clear taxonomically, but in the neotropics we have some frustrating limits to our ability to identify species. There are some undescribed species (some of which have collected specimens somewhere already while others don’t), but also many described species which are on iNat but the literature is inadequate for matching name to photos (lack of diagrams, poor descriptions, or accessibility issues). I imagine there are similar issues for many other taxa and they can only really be solved by academics.