I don’t think that you can entirely remove the xProfile name field from BuddyPress (Even with the plugin that is available). So I decided why fight it? I cloned the WP username. The only potential problem with this is that the WP username is public – I used a plugin to force stronger WP username and passwords to help with this.
Here is the base of what I did:
– On the registration form hide the xProfile name field (CSS display: none) and make a javascript listener (CHANGE) function to change the xProfile name field to the value of the WP username. This will take care of the form validation – xProfile name field is required. See reference…
– For the edit your profile section I hide the xProfile name field, I also included a PHP function that made the value of this equal to the WP username, in the state that a user was added from the dashboard. (I did not provide PHP, I essentially grabbed WP logged in username…) – You can also display the xProfile name field input as readonly (add attribute: readonly).
Now all xProfile name field instances in BP are the same as the WP user.