You are entitled to see all the hands that are played to the end (not folded to a bet). The reason for this is related to B&M play - a player is allowed to ask the dealer to show a mucked (not folded) losing hand on the river as evidence that collusion has not occurred. As a previous poster stated, it would be considered bad form to do this repeatedly at the table (it slows down the game and would be thought of as a borderline angle shoot).
All online sites that provide hand histories will show the mucked hands, not just
PokerStars. You better believe that people will check them - I do! The key thing to remember is that it does not provide any edge to an individual player. Everyone is treated equally.
