Playing a long amount of time has nothing to do with anything. If you play right, nothing will change.
I disagree totally. If you play too long you can take a big loss quick against players that live off suckouts. I have detailed notes on almost every player I see on a regular basis. The fish have learned to stay away from me. (comes from playing the same tables too often). But they will still see the flop against me on my PFR. I have learned to adjust my play more to stop giving them implied odds but will take the same bad beats and lose big pots when I've played too long. I never sit down for more than an hour playing Ring games but will play 3-4 SNG's in a row because I don't multi table and the play is much slower, I can relax and pay better attention to the style of play.