Well that's where I originally looked. The commenter mentioned the composing experience, but I didn't find any details. If you coud point me to a UI demo or info, I'd appreciate it. I must be missing something. Thanks.
If you aren't signed in (or in browser private mode), and visit https://medium.com, you should see this http://cl.ly/image/3z293w0b2V0j. I don't have write access to the service either, but my guess is that's how it looks like? You can actually type, as well as replace the photo in that page. But you can't save.