Between you all, you've nailed it, really.
We all love and appreciate a good solid horror film with no nudity for what it is, a scary adventure like the Universal monster movies or the paranoid 50's mega monster flicks.
However most of us like the view of the naked female form (soz Suzi - and naked male form!) which filmmakers soon gathered and it was probably Hammer that first started mixing the two which made them such a famous company in their day.
None of us would say we wouldn't watch a horror movie if it had too much sex and nakedness in it like I Spit, Serbian, Bunny Game and even Cannibal Holocaust ......would we?
Personally if I watch a horror film that is good I don't get to the end and think, "You know, it would have been so much better if it had T&A in it." I also have never watched a film and thought, "Too much fornication for me!"
Certain genre's require red stuff, some pink. I like both but as the question was How Important Is It In A Horror Film then it is not important all......but desirable sometimes!
