Hey Joy!
Well, one way of keeping track of people is to bookmark their discussions, then if you click on the little flag in the upper right hand corner it will show you your bookmarked discussions. From there you can go to their discussions and click on their title. that will take you to their profile page where you can view all that person's posts and discussions they have made.
Hope I got this right and it helps you
Skylamb <3
P.S. you can also search for discussions and posts like "chapter ix" that might help too!
July 2015