The code is (Img SRC="http://static.librarything.com/pics/ss10.gif") , with the number after the "ss" varying depending on my rating.
I noticed that every post in which I have used that code is showing as a broken image.
Did something get updated recently to cause this issue?
In the meantime you can change your image reference to http://image.librarything.com/pics/ss10.gif if you want to fix it for any right now.
Weird. Your message says http:// but the link is to https://