So.....let me get this straight.
If the OP, Playa, or Charlie were at a poker game and saw the one of the players had the
best hand, you guys feel it is okay to warn the other players?
Why would you, nobody is being deceived or taken advantage of. Now if you saw him stash an ace up his sleeve that might be a different story, or maybe if he was a long time great player whose first words when he sat down at the table were "what are the rules again and is it the full house or the straight that is the better hand I never can remember".