On one hand, the potential privacy invasions enabled by this technology (e.g. Xfinity (of course Comcast) a few months ago[1]) are pretty scary.
On the other hand, the technology seems potentially extremely useful. I've had an interest in pose estimation for many years, but doing it with normal cameras seems tricky to do reliably because of the possibility for visual occlusion (both from the body itself and from other objects). I'm curious to see if I can use this for something like tracking my posture while I use my computer so I can avoid back pain later in life.