Many of the strings have long tails. If you are interested in posting on one, right to the right of your keyboard, above the arrows, you will find 6 keys. One says "End".
If you punch end it will take you to the end of the tail, you can read all the last posts, and you did not have to scroll down. When you get done reading, if you don't want to post, hit backspace and it will bring you to the top and ready to punch a new string. Saves an awful lot of work!