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Sure, Also do not forget to check the post shared in the article for better understanding.

Well, I just read the other post and I still don't know how it works or how a hive user can use it. If you could explain it to me, I would really appreciate it.

As a curator in Hive, it is your choice to upvote the author or not, based on the author KE score.
so basically it give you a score only, for a author and does nothing.