Thank you so much for making this post! I know I'm late to seeing it, but it has really helped me understand what is happening on Hive. I'm a student at OSU and I created a Hive account for one of the classes I'm taking in order to learn about the blockchain. I was really confused about how comments and upvoting and downvoting worked, but this guide helped me understand how important each action on Hive is and the weight it carries. Thank you for supporting newbies like me!