bbPress.org

you can edit the profile page to prevent them changing it

In your theme create a bbpress folder

wp-content/themes/%yourtheme%/bbpress

where %yourtheme% is the name of your theme

then navigate to

wp-content/plugins/bbpress/templates/default/bbpress/form-user-edit.php

and copy this file to the bbpress folder you created above

bbpress will now use this one instead of the default.

edit this new file and take out lines 33 to 45

ie take out the following

<div>
			<label for="nickname"><?php _e( 'Nickname', 'bbpress' ); ?></label>
			<input type="text" name="nickname" id="nickname" value="<?php bbp_displayed_user_field( 'nickname', 'edit' ); ?>" class="regular-text" tabindex="<?php bbp_tab_index(); ?>" />
		</div>
		<div>
			<label for="display_name"><?php _e( 'Display Name', 'bbpress' ) ?></label>
			<?php bbp_edit_user_display_name(); ?>
		</div>
		<?php do_action( 'bbp_user_edit_after_name' ); ?>

This will remove the ability to set a nickname and to change the display name.

great, glad you’re fixed