Ok, I just had a conversation with one of our recommendation engineers and here were their suggestions on how to reduce the amount of "meta" stories (stories on Medium about Medium) in your home feed:
1. Delete any "meta" stories from your reading history: https://help.medium.com/hc/en-us/articles/224488047-Refine-recommendations
2. When you see a meta story in your home feed, mute the author (https://help.medium.com/hc/en-us/articles/224544048) and hit the "show less like this" button (https://help.medium.com/hc/en-us/articles/224488047-Refine-recommendations#show-less-like-this-0-4)
3. In the future, avoid clicking on a meta story (hate-reading messes with your home feed!)
If you want to deep dive even more, you may enjoy this response from Terrie, our curation manager about this issue: https://terrie.medium.com/hi-matthew-yes-absolutely-on-the-technology-being-much-better-now-f8e6dd4913b0