See the current discussion on annotations in the process of being deliberated. New requests are not of high priority, so this will likely take a decade at iNaturalist’s current rate.
https://inaturalist.freshdesk.com/en/support/solutions/articles/151000191830-what-are-the-definitions-of-inaturalist-annotations- is really annoying, specifically on the mollusk shell thing. I have been annotating empty shells as constructions because, quite literally, they are even if they take a very long time to grow. It’s also weird that they do not mention leafmines.