Above each of the posts, I see two links on the right. One takes you to this part of the page where you can add another post. The other just puts that post at the top of the window.
The contrast (lack thereof) was a big problem for me. Eventually I discovered that if I tilted the laptop screen back further, it would appear so I could then tell where one post ended and the next started. A more contrasting theme would probably be a huge help.
Note: After I posted this comment it appeared with “edit” option. The previous posts I made do not have that option.