Disabling 2FA is confusing
The UX for disabling 2FA on your account is less than ideal:
After going to Account settings, you see this:
If you click "Manage two-factor authentication", you see this:
Which might lead someone to say "But I'm on the account settings page".
Proposal
Move the "Disable" button to the "Manage two-factor authentication" screen when a user has enabled.
You've already enabled two-factor authentication using mobile authenticator applications. In order to register a different device, you must first disable two-factor authentication. [Disable button]
Edited by Taurie Davis