Changing your Buffer account avatar
The personal avatar that appears next to your name in the Users area is auto-populated from Gravatar. Therefore, if you change your image in Gravatar, the change should also reflect in Buffer.
Changing your Buffer account name
At this time, it isn't possible to change your own account name within Buffer. If you'd like to update your account name, please get in touch and let us know the current name you want to change and the new name you want to use. Once we have that information, we'll be happy to make the change for you.