I guess you've made my point
@Poker Zombie , which is that I've yet to encounter someone with a good argument for following this rule. I've only ever been told that I should follow it strictly because it's a rule.
For some, simply saying that "authority figure X said Y, therefore Y" is good enough. I'm not one of those people. I don't follow rules because they are rules. I follow rules because they are worth following. If I approach an intersection with no cars around for miles and miles out in the middle of nowhere, I'm not waiting for that light to change because to me, the rules don't apply. Stop lights are designed to control traffic. When there's no traffic, they aren't necessary. You may be the type who sits there for 5 minutes waiting for the light to change, or the type that backs up 15 feet then pulls back forward trying to get the light's sensor to acknowledge that you're there, all the while cursing the damn light which won't turn green. Nothing wrong with being that person, but it's just not me.
My point is this: rules aren't worth following just because they are rules. Rules are worth following because of their intentions. There are good and bad rules in all areas of life. I believe the rule of "never show your cards" is flawed. I think the reason the rule was ever even written is likely because there are a few clear situations where a player should never show his/her cards. In fact, during the majority of play, you shouldn't be allowed to show your cards. The following situations warrant this rule:
1) Any time you are in a multi-way pot, showing your cards provides an unfair advantage to other players in the hand
2) Showing your cards to another player in a tournament setting when it is their turn to act, usually for 'giving air', puts the other players at the table at a disadvantage since you may have otherwise knocked that player out of the tournament, or at least crippled his/her stack
Since these situations cover 90-some-odd percent of all situations at a poker table, I believe they just made a blanket rule to say, "never show your cards" because it was easier to just make a blanket rule than to expressly state when it is and is not ok to show your cards.
However, I believe you guys are undermining the value of a player being able to show his cards in the right situations. I gain A TON of value by showing my hands in the right spots. Here's a prime example of when I will show my hand, note its' a very specific situation:
If I'm in a hand, and we are heads up on the river, and my opponent has already acted and I have a tough decision to make. It's a spot where I'm either calling or folding. No other players will act behind me. Whether I show my cards or not in this spot does not affect the other players at the table. However, I can gain a lot by showing them. I can craft my table image by selecting which hands I want to show. If I've been getting a run of shitty hands, and my table image makes me look super nitty, I can gain a lot by showing my J4s cutoff raise preflop from this hand. I can also gain a lot in the situation I mentioned earlier where I showed my KK on the K554J board and folded for one more bet on the river after 3betting my opponent. I showed those Kings face up, and said, "I fold". That laydown became the talk of the week at that circuit event. I probably heard players talk about that hand at least 6 or 7 different times throughout the weekend. Some players said, "bullshit, no one ever lays that down, EVER." Then they'd argue and say, "it's true man, the dealer confirmed it to me." Then of course I'd tell them that I'm the player who laid it down and I explained my reasoning on the hand, etc, etc. The action that that hand brought me was incredible. Every player at the table thought I was a complete pushover and tried to push me off my hands for the remainder of the tournament. When I got to the FT, players were still talking about the hand, unaware that I was the one who laid it down. I ended up amassing a shit-ton of chips, and went on to win the Circuit Event. Table image is HUGELY important. I can't emphasize this enough. Being able to show your cards once you're heads up on the river and last to act is an EXTREMELY valuable tool that should never be taken away, in my opinion. I can show other players that I'm capable of bluffing, that I raise with shit cards (when in reality I don't), that I make monster laydowns, or that I'm capable of a semi-bluff raise from earlier in the hand. If I can change the way a table thinks of how I play, I can exploit that image later.
These gains FAR outweigh the "villains sometimes aren't paying attention and may act irrationally" argument I keep reading. A player not paying attention should have no bearing whatsoever on the rules. Whether this is a cash game setting, early in a tournament, or at the FT of a WSOP event, this doesn't adversely affect the other players in any way. Remember, I'm closing the action in a heads up pot.
That's my two cents. You're all welcome to disagree with me, but until I'm given a good explanation as to why I shouldn't be allowed to do that, I will continue to do it. I just gain far too much to give up that edge. And for me, "because it's in the rulebook" just isn't a good enough argument.