The "Location" field in "View" and "Edit" profile form displays user name, instead of actual location string. Also, this field becomes required together with "password" field, which is wired.

I suspected that this field has another meaning - your user name, but after I saved my changes, the value from this field appeared in "from" string of my profile near my posts. Which is fine.

Also, I've never set my location as a my user id (why would I?), so the migration process also should be checked.