Curation is very complicated indeed. I do believe that HIVE curation inadvertently brings about people/farmers who are here purely for the monetary aspect. I have no problem with that, except in cases where it's a repeated extraction and sale of HIVE. So I basically never ever curate a new user whom I notice is powering down nonstop.
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I'm maybe a bit less restrictive in this aspect. I think that new users need to understand that it's by growing their stake that they can actually scale their income. On hive, learning things takes usually a bit longer so maybe these users just need some examples how things can be done :-)