Thank you for your comment @rezoanulvibes. I follow a number of people that is managable for me to see posts I like in my newsfeed. I do not do the follow me, I follow back thing, and need to see several good posts for me to follow. I prefer to read and upvote all comments on my posts as long as I can do it, which is I think better than to follow thousand of people you don't see their posts, or to upvote my own comments.