PB, you might be right that there are situations where touch-and-go deads might be worthwhile (and with appropriate experience, safe), but to be honest I can't think of them. Even with WSB speed deads or the 20-rep "have a trashcan nearby to puke in" deadlift workouts Glenn has posted about, they're done as a series of singles.
If someone's only goal is to throw a bunch of volume at his back, I guess touch-and-go deads are one way to do it. The main point that I've been making is semantic: what most people refer to when they say 'deadlift' is a full deweight/reset between reps, and what YG is calling a 'deadlift' isn't comparable and needs a qualifier ('touch-and-go', 'bounced', whatever) in the same way that a suited squat or shirted bench does.