The Reputation Game is so underrated, it's actually insane. We can't 100% tell multi-account usage, but we can tell apart Bots/AI from humans pretty well. That will be a huge topic soon, well, thinking about it, it already is.
There are a lot of projects and creators out there who'd love to have a fat list of unique Cryptoadressholders for airdrops. But it's impossible to tell by using ETH or something like that. The last example was Coinsider on Youtube (267k Subs).
in case you want to check it yourself: https://www.youtube.com/post/UgkxoDiOTp70uQsnWFfmcS2SUSpo9NEvS3Uz
Going ETH eventually, but it's really interesting to look through the 161! Comments and suggestions. They are clueless. Well tbh I'm too! I know we can do that on HIVE very well, but there's nothing out of the box to point to. Maybe we can get that done soonish.