javascript:top.resizeTo(800,600)\
into the address bar to reduce it to 800x600 screen resolution so the screen shot will be narrow:

Actually, the above screen shot did not show the truncated thread problem as clearly as when I first viewed it with a 22 inch wide screen monitor. The thread was very wide and very shallow (short) with lots of blank space below it. I could not view most of the message. I have to use the vertical scroll bar to view the rest. I was using the Flock social web browser.
To make the screen shot narrow, I had to type
javascript:top.resizeTo(800,600)
into the browser address bar and press the ENTER key to reduce the screen resolution to 800x600. However, this resulted in the truncated thread become deeper and you will just see a small blank space below the thread. The problem was more acute when it was first noticed.