Just my two cents as an “expert” and someone who ID’s things and doesn’t contribute all that much relatively in terms of photos. I just spent 4 days going through and identifying nearly 1800 unidentified or misidentified NA cicadas with another person. I don’t ask people to “fix” an ID (or tell them they are directly wrong), but I don’t usually give a justification for why something was identified as such. There is currently a 535 page backlog of unidentified NA cicadas (it was 595 before we started). I just don’t have the time. If someone tags me I’m always happy to help explain my reasoning. With my own group I tend to take more time to explain things, but people only post a few of them a day, and I’m not trying to clear out thousands of images into RG or at least get a correct ID that someone can decide to accept or not. Not sure if that really helps, but if someone is going through thousands of images to ID what can be ID’d it’s hard to at least comment on every one.