이 포스팅 말씀이시죠?? 문제 제기하신분과 비슷한 이야기를 7개월전에 이미 하셨어요.
More specifically, people can have 30-45 of "close friends", and 9-15 of them are "intimate friends", and 3-5 of intimate friends can be called "best friends".
Then, what does 30 of Steem witness votes mean? It means you need to use third level of cognitive burden. To manage and closely monitor 30 witnesses, voters must pay greater efforts than have 15 or 5. Surely, people can only vote for few witnesses.
https://steemit.com/dpos/@clayop/dpos-and-dunbar-number-can-people-manage-30-witness-votes