It's about relations. When I write one or two post a week, I upvote those (mostly, not always). When I write more, I don't. When you write multiple daily just to upvote yourself, and receive upvotes from your circle, that's farming.

And when 75% of the rewards someone is able to distribute go to himself, friends and family, that person is not helping the community as a whole. Proof of Brain only works when you look outside of your circle, and support people you do not know personally.

If he really wanted to support the platform, he would stop giving upvotes for receiving upvotes, look out for the many new accounts that don't have any contacts, and support them without asking them to join his discord to become a part of his business.