Some Medium users have noticed that ad-blockers are blocking legit parts of Medium, such as our first-party analytics and icons. This is not good because they prevent you from making fullest use of the site (and at worst, new users might not realize what’s missing). To be clear, we don’t currently have any ads on the site and we don’t allow third-parties to track our users across the Internet as a result of their visiting our site.
We wanted to let everyone know:
The official Medium blog