I find them very unnecessary, frustrating (who likes to see themselves die again?), and less informative than the corpse cam.
With the corpse cam you could watch what your killer was going to do next or even better watch them T-bag and thus have more of a chance to have your teammates kill them. I mean i cant count how many times I have killed players who stop fighting just to T bag my fallen ally.
Advantage aside, I just find them incredibly annoying and to have to push a button to skip them seems like something that should be able to be disabled from a menu.
Any word if they are permanent?