I don't know all the details but they are official curators selected by Khal to upvote and engage on valuable content.
I'm not sure if there is a new account set up for them or if they will just use their own accounts, but they will get a big delegation (I think something like 50k HP).
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I remember Khal saying that one of the goals with these is to improve the distribution of rewards so I think he wants these guys to look for some "unknown" authors as well and not only vote for the big ones (provided the content is good, ofc)
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