This is a good run down, with simple and easily implemented tweaks. Bravo!

I find editing lists to be very frustrating. I also wish there were a way to bulk select and delete very old responses to articles.

My biggest issue with Medium in its current incarnation is the right sidebar of "recommended" articles, which more often than not, seem to have ZERO connection to the main article, bordering on bizarreness. That seems to me to violate #3 and #4. I see that they've brought back the writer's tags (topics) to the bottom of the article. That helps a lot. It makes a lot more sense for a reader to find related articles than the weird algorithm that displays seemingly unrelated stories.