Allow non-members to view the BuddyPress profile pages even if you are "locking down all of BuddyPress".

my_pmpro_bp_lockdown_all_bp.php

/**
 * This gist will disable the default behavior in PMPro BuddyPress 5.2.5 or earlier,
 * which would redirect users away from the BP profile pages if you had 
 * "all of BuddyPress" locked down for non-members or members of a specific level.
 *
 * We might address this in future versions of the Add-On, but for now, you can use
 * this gist. Add it to a Code Snippet or a custom plugin.
 */

// First disable the default PMPro BuddyPress behavior.
function my_disable_pmprobbp_lockdown_all_bp() {
	remove_action( 'template_redirect', 'pmpro_bp_lockdown_all_bp', 50 );	
}
add_action( 'plugins_loaded', 'my_disable_pmprobbp_lockdown_all_bp' );

// Our new lockdown code, which allows non-members to see profiles.
function my_pmpro_bp_lockdown_all_bp() {
	
	if ( !function_exists( 'pmpro_getMembershipLevelForUser' ) ) {
		return;
	}
	
	if( !function_exists( 'is_buddypress') || !is_buddypress() ) {
		return;
	}
	
	// Don't redirect away from the Register or Activate pages if using BuddyPress registration.
	$register_page = get_option( 'pmpro_bp_registration_page' );
	if ( 'buddypress' == $register_page && in_array( bp_current_component(), array( 'register', 'activate' ) ) ) {
		return;
	}
	
	// START: THIS IS THE PART ADDED IN THIS SNIPPET
	if ( bp_is_my_profile() ) {
		return;
	}
	// END:  THIS IS THE PART ADDED IN THIS SNIPPET
		
	global $current_user;
	$user_id = $current_user->ID;
	
	if( !empty( $user_id ) ) {
		$level = pmpro_getMembershipLevelForUser( $user_id );
	}

	if( !empty( $level ) ) {
		$level_id = $level->id;
	} else {
		$level_id = 0;	//non-member user
	}
		
	$pmpro_bp_options = pmpro_bp_get_level_options( $level_id );
	
	if( $pmpro_bp_options['pmpro_bp_restrictions'] == -1 ) {
		pmpro_bp_redirect_to_access_required_page();
	}
}
add_action( 'template_redirect', 'my_pmpro_bp_lockdown_all_bp', 50 );