I did one of those "hitless" NPS events at Yorktown in 1981. Hit taking was prohibited. Actually, from a private's standpoint, it was kinda nice. It meant one less thing to concentrate on. I could just pay attention to the commands, firing the musket, seeing the spectacle unfold around me. I'd rather see that than yucking-it-up hit taking.
I'm on the other side of the fence, tho. We need to encourage people to take hits. Units need to draw straws or cards or tell everyone born in February that it's their time or something. Individuals need to cease fiddling with a non-firing musket and take a hit. Fiddle with it some more in camp. I'm also a big believer in staying hit. If you don't want to lie on the ground, take a walking wound.
Even after all my years in the hobby, I still think one of the characteristics of a good reenactor is the willingness to not be bulletproof.
Pine River Boys, Co I, 7th Wisconsin
"We're... Christians, what read the Bible and foller what it says about lovin' your enemies and carin' for them what despitefully use you -- that is, after you've downed 'em good and hard."
-Si Klegg and His Pard Shorty