72 words, <1 minute
Medium is spammy, constantly prompting you to make an account and sign up for pro. Medium is proprietary, and has been known to delete content they find objectionable with little accountability. Medium does not have native code formatting, and to include syntax-highlighted code snippets in your writing you have to embed them in a gist.
Also, if anyone makes money from you reading this content it had damn well better be me.