People have a right to freedom of association and a blocking feature would seriously fix a problem that lead to thousands leaving Steemit. If we want what's best for this blog, we need to have the ability to block abusive people. Yes, no one claimed he couldn't downvote whoever he wants, but he's clearly doing it with malice. He's telling 100 people that his money is better than theirs and that because he has money, others aren't allowed to have different opinions from him.