We know the stereotype: The nagging wife.

What would you say, is nagging normal, a negligible flaw of her, harmful, a slight nuisance, or maybe even his fault?

I think nagging is evil and a real burden on relationships, but also an obvious symptom that she has lost attraction. I also see it as a severe character flaw.

I am asking because most people I meet seem to think that nagging is not a big deal.