Loved my Windows Phones, I had three of them, and even released an app. I thought the app support, from a technical standpoint, was really good insofar as I could release the same app and have it run perfectly on phones, tablets and desktops. The issue I had with Windows Phones was how they just got steadily worse instead of better. They lost their uniqueness and became closer to Android clones with each iteration, and it was clear Microsoft weren’t fully behind the platform long before the app developers began to leave. Real shame.

Onboarding. The fact that you have to choose an instance to join while creating an account is essentially forcing people to make a decision for which, unless they’ve done some reading, they’ll have no idea of the implications. It’s such a weird concept for new users - they have to know about a thing before they’ve had experience with a thing.

Even if it doesn’t really matter which instance you begin with, the experience will be different, and there’s a sense of “pressure” at the point of signup, which doesn’t exist outside of the Fediverse.