This is/was the article I was looking for:
I set up my Raspberry Pi to automatically tweet at Comcast Xfinity whenever my internet speeds drop significantly below what I pay for
https://twitter.com/a_comcast_user
After reading the above I started keeping track of Internet speeds. I was not looking for “blazing fast at all times!”. But when the speeds went low it made it easy to complain. (the breaks in the graph are when there was no Internet service)