Good design takes care of business but doesn’t start or stop there. I love seeing teams do good things that aren’t only about metrics.https://twitter.com/healtheugene/status/919518481636298752 …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Also true. Ideal in this case: study whether showing calories actually changes behavior. If not: drop it. If yes: setting.
Just playing a thought game here, but the point is that all UXers should play this game ALL THE TIME FOR ALL THE PERMUTATIONS.

Agreed. Key points: 1. Org values should drive decisions. 2. Consider (& seek feedback about) possible harm. 3. Learn & adapt.
In closing: It's not easy. It's usually messy. Everything changes. Complexity grows over time. Eventually you need to stop and clean up.
Yep, you just have to keep asking the questions. Why is this feature good, for whom? Why is it bad, for whom?
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.