I would like to have the opportunity to show my cards even after I have folded them.
( Of course I don’t mean to show them in the middle of the game, only after the dust settles - either by every but one player folding or after the showdown have taken place ).
Since this creates added tactical opportunity without doing any harm to the game I see no reason why this opportunity is not granted.
I have always had this thought in mind but in a recent game it came to me in a striking way: the player next to me went all in and everbody folded me being the last one in the row - being the last one and having a dominant stack I enjoyed particular attention by the crowd - after long thinking I folded too. My long thinking made my opponent show his cards: AQo - mine was AJo. I was desparate to show them but I could not. I felt it was unfair - I missed an opportunity to show others how good my judgement was.