bp_get_member_name()

	function bp_get_member_name() {
		global $members_template;

		// Generally, this only fires when xprofile is disabled.
		if ( empty( $members_template->member->fullname ) ) {
			// Our order of preference for alternative fullnames.
			$name_stack = array(
				'display_name',
				'user_nicename',
				'user_login'
			);

			foreach ( $name_stack as $source ) {
				if ( !empty( $members_template->member->{$source} ) ) {
					// When a value is found, set it as fullname and be done with it.
					$members_template->member->fullname = $members_template->member->{$source};
					break;
				}
			}
		}

		$list_fields = bp_xprofile_get_hidden_fields_for_user(  $members_template->member->ID, bp_loggedin_user_id() );
		if ( empty( $list_fields ) ) {
			$full_name = $members_template->member->fullname;
		} else {
			$last_name_field_id = bp_xprofile_lastname_field_id();
			if ( in_array( $last_name_field_id, $list_fields ) ) {
				$last_name    = $members_template->member->fullname;
				$full_name = str_replace( ' ' . $last_name, '', $members_template->member->fullname );
			} else {
				$full_name = $members_template->member->fullname;
			}
		}

		/**
		 * Filters the display name of current member in the loop.
		 *
		 * @since BuddyPress 1.2.0
		 *
		 * @param string $fullname Display name for current member.
		 */
		return apply_filters( 'bp_get_member_name', trim( $full_name ) );
	}