I recently started IDing from a new search, specifically US plants at the Plantae rank. Its a huge volume of observations >200,000 strong (compared to ~150,000 unknowns for the area) that is loaded with older stagnant observations.
I find myself consistently being able to move an observation to genus or species level about 25% of the time, and that is the level I have been shooting for generally. But when I do this I breeze by tons of observations I could put at a higher level. If I just IDed to Class I could probably place >95% of of observations, and at family level I think I could get a little more than half. At what point do other IDers find it is useful to advance an observation versus it generally being a waste of time.
Personally I don’t see much reason to ID to class from kingdom, but I am really on the fence about family. When I’m keying stuff getting to family without a key, or only pulling from one family is very helpful, meanwhile it seems that a load of my older unknown IDs I brought to family have stagnated there. Do others feel that IDing to family is useful, or should I just stick to the more frequently checked Genus and Species ranks?