BuddyPress.org

Afaik there is nothing out to do this.

As start point, this snippet which let you hide a profile by user_id. Add it to bp-custom.php

function bpfr_hide_user_profile() {
global $bp; 
// hide user_id 35
if(bp_is_profile && $bp->displayed_user->id == 35 && $bp->loggedin_user->id != 35) :
   wp_redirect( home_url() );
   exit;
endif;
}
add_action( 'wp', 'bpfr_hide_user_profile', 1 );

Also, from here
https://buddypress.org/support/topic/temporarily-blocking-a-user-while-keeping-their-datanetwork/
https://wordpress.org/plugins/buddypress-verified/