Nirvana: (1) They do show up in the public list, but you don't see them - you only see challenges that you can accept - not all of them.
Little Bosses - When the Little Boss invites someone, I would also like to see the accept/decline to go to both BIG & Little Boss. (Still a copy to go to BIG so they will still know what is going on.)
(hide) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (show all tips)