I don't remember downloading this addon, but it popped up a notification on a site about the name change of this extension and mangled the webpage I was viewing. I lost some really important information I was trying to access because it forced me to refresh the page.

I lost about 30 minutes of work because they wanted to inform me of a name change :(

Clears away the clutter from all of your articles. Instantly. 100%

Typically has worse results than just using Firefox's built-in Readability-based reader view.