Waiting to show a good hand

[jeffnc]

Just read the FAQ and read something that surprised me. It called it a "slowroll" if you wait to show what you think is the winning hand on the river, and thus a breach of etiquette. Well first of all that's not what I call a slowroll - I think if it as thinking awhile before calling a river bet with the stone cold nuts. Or messing around with showing your hand when it's your turn to show.

But if you always show your cards first just because you might have the best hand, then how the heck do you ever get to see the other guy's cards? I thought you simply went by Robert's rules of poker. The last guy to make a move (bet or raise) was the first guy to show. If he's bluffing me, I want to see what he's bluffing me with. That's just the way poker is played. What's the scoop?