Hang on, you wanted to know what the advantages were in terms of what it brings to the game, not in terms of mainstream acceptance. No one is saying that allowing headshots will result in mainstream acceptance. Does a game have to mainstream to be worthwhile ?
Sure, down in the 'Tron, you might need to go mainstream to get a critical mass, but no so in places like the UK, or perhaps even Auckland.
I think Ryan makes a pretty good case for the advantages for allowing headshots, especially the one about not stopping the game while someone whinges about getting an accidental headshot (this is certainly true in Skirmish, players tend to celebrate rather than whinge and combat is seldom disrupted).
And here’s another reason:
When players make bodyshots, they tend to do so at a velocity that is inappropriate for a headshot. This explains why accidental headshots can be quite jarring - the weapon was travelling quite fast because there was no intention to hit the target’s head.
So, under current rules, 100% of stikes are travelling at bodyshot velocity, and some of these will result in accidental headshots.
So, if light headshots are allowed, then x% of will travel at bodyshot speed and y% will travel at headshot speed (i.e. lower speed), where x + y = 100.
So, there will be fewer stikes at bodyshot velocity. Ergo, combat will be safer overall.

