Strikes to the side of the neck are low percenters unless you get lucky. Strikes to the front can easily collapse the trachea and the main one for us, the back of the neck is not allowed. However technically nothing is 'banned' in MMA. Illegal strikes are considered foul so that opens up the opportunity to cheat as there is no automatic disqualification even if you hurt your opponent with an illegal strike. However, I would suggest legal action would certainly follow injury caused by an illegal strike.
Three Reasons Why You Should Always Cheat in an MMA Fight | Cagepotato
By the time I'm striking the neck there is little resistance.
And so have I. But, I have never hit anyone full force on the back of the neck. Who's further up the wall?
Perhaps not, but I don't go round trying to compare. What is 'your average martial artist'? I would claim that all our training is reality based and good solid training. I would suggest there are plenty of others here who might claim the same.
No, not professional grapplers but BJJ black belts, certainly. One of my main training partners is a BJJ black belt.
You could have fooled me. Even this discussion has been hijacked back to how good MMA is. The topic was "why do TMAs have more difficulty in the ring/octagon" and the answer is "they don't care as they are not training for the ring/octagon".