Yes, like Bugber and Paul_dennehy mentioned, it is not to discredit people’s IDs, the whole point of iNaturalist can be used by anyone and are weighed equally. Just like Paul_dennehy said, the leaderboard put me at or near the top of clinid fishes, and I sometimes get tagged for help with australian or californian species, but I am not very well versed in those.
The purpose of this is that let’s say: there is an expert in australian anemones, but they live in England, so now they only post about let’s say birds. So when I look at their observations it will not show neither Australia, nor anemones, but with this feature I will be able to see that they have many IDs in Australian anemones, so I can ask for their help with those.