I pull the pin for shorter chips and pitches ... when I remember to, lol. Shots like these that used to drop with pin in, say, 6 months or so ago; now 'hit the stick' and leave tap-ins at least half the time. So I've taken to pulling the pin.
I don't bother pulling for other shots - at the risk of getting a one-in-a-thousand chance shot that hits the top of the stick and 'ricochets' 100 yds away.