Part of their motivation for doing what they are doing as moderators is to reduce their own, personal nuisance factor?
Yes. Seems reasonable to me - they are volunteers, after all.
Thomas, as you really wanting to speak for all Members of this List?
It doesn't take a psychic to realise that people are getting annoyed when they say as much in their replies... Yes, it's based on the assumption that those posting are a representative sample of those reading, which probably isn't very precise, but it's close enough.