How do I change my username on http://stackexchange.com, as in the main profile, not an individual site profile?
Edit: this question was closed as a duplicate, but it isn't really.
However, I did find Email and Username inconsistencies on StackExchange.com later, which it really is a duplicate of. So no real harm done.
PS I'm not sure if it's good practice to change the automatically inserted link to the correct one.