Outside of the writing, I kind of don't like the design of Medium. I can't quite put my finger on why, but it looks light but feels heavy (as a reader). I also

Outside of the writing, I kind of don't like the design of Medium. I can't quite put my finger on why, but it looks light but feels heavy (as a reader). I also don't like that every post pretty much looks the same, with the exception of the header image; with other blogging services you could style it at least a little (for example, it's generally obvious when a blog is on blogspot, but there are times when I didn't know until I searched and noticed the URL. Tumblr is very customizable too.) I even prefer Livejournal's interface as a reader to Medium's. As others have pointed out too, it didn't seem to get past the 'hipster SV writer, dad, astronaut, all around awesome sauce' style writing and showboating aspect. You can do that on other platforms too (add the tag line and write the typical 'Medium way') but it feels like on Medium it's really uncommon to see a post from someone who doesn't add too much to the tag line. Medium would have to get over this mentality and make it more appealing for regular writers, not just appeal with the interface, if it were to become bigger.