I think the problem here is that many people now use the practice to follow people and than mute them, so their tweets doesn't get shown in the feed (or he does

I think the problem here is that many people now use the practice to follow people and than mute them, so their tweets doesn't get shown in the feed (or he doesn't get notified if they like/retweet/comment them). So a person which officially follows millions of people could have muted them all and his feed is always empty. In my opinion is a good idea though.