Come to think of it, I can't understand how "nice hand" could ever not be sarcastic. I mean, you were dealt the hand. It's not like you bought it from a dealer or made it yourself. "Nice bet" makes sense, as does "good read", but really, "nice hand"? I'm just as likely to complement someone's avatar on PP. "Hey, you got the guy in the grey suit in the top left? Nice avatar."