People identifying sightings identified previously when it is unnecessary

I do this, I choose to id a species sometimes and I go back YEARS. I think it’s useful for inat to have a confirmation. There might only be the original id, or the id might be wrong. I check how many ids i make of a species so I can avoid being near the top on the leaderboard. Sometimes people from other countries ask me to id their observation, as they’ve seen me on the leaderboard, but I’m not familiar with the flora and fauna of other countries and I don’t want to make a mistake. So i decline.