Walt Mossberg wrote this Verge article about Twitter becoming too complicated for users, comparing it unfavorably to Facebook.

John Gruber’s response sums this up perfectly:

The fundamental problem is that Twitter is compared to Facebook, and it shouldn’t be. Facebook appeals to billions of people. “Most people”, it’s fair to say. Twitter appeals to hundreds of millions of people. That’s amazing, and there’s tremendous value in that — but it’s no Facebook. Cramming extra features into Twitter will never make it as popular as Facebook — it will only dilute what it is that makes Twitter as popular and useful as it is.

Exactly.