Some people will insist that correct usage insists that neither can only be used with two items.
I am not one of those people, and I consider that sentence perfectly good.
Kipling wasn't one of those people either:
But there is neither East nor West, Border, nor Breed, nor Birth,
When two strong men stand face to face, though they come from the ends of the earth!
It might be a bit too good, in fact! The format used gives a nice rhythm that can make it stand out strongly. If it's not a sentence it's appropriate to have stand out strongly, then "none of the questions, answers or comments" might be a better wording.
But if it's not standing out when you read over, or if it is an appropriate place to have some extra rhetorical oomph, then keep it.