I think it’s quite easy to avoid all the conjecture on motivations if people just add a description to their Bio on their profile (except you can’t see this on mobile(?), grrrr).
Example (sorry for the callout): https://www.inaturalist.org/people/louisb
Great explanation and reasoning that you can act on.
Even a simple one like this: https://www.inaturalist.org/people/trichopria
Quite clear David is qualified to give specific ID’s in a difficult taxa.
Makes it much easier for if you’re using the leaderboard to find someone to contact or @ for ID help. And if you’re one of the high-volume ID’ers that get a lot of notifications you can’t sift through, note that on your bio page so people don’t waste time waiting :)