Downplayed: Writer couple Alice and Bob appear at a fan convention. They mostly talk about their own stories, but will occasionaly remark about each other's.
Justified: As Bob's wife, Alice probably got to witness Bob creating his work from start to finish. Perhaps she was even asked to "beta-read" the unpublished script/novel/comic/song/whatever. So she probably has a better idea behind the meaning and symbolism (or lack thereof) of a particular work than any random person on the street.
Double Subverted: Alice writes on her blog about the work.
Parodied: Alice will keep on yelling about spoilers and important pieces of backstory as loudly as possible, either physically at a con or by having a very high profile blog that she will write the spoilers on.
Zig Zagged: ???
Averted: Alice makes no statements about Bob's work.
"Hey, Alice, Fan Con and Geek Con both want me to do a panel about Long Runner. Since I can't be in two places at once, would you please do the panel at Geek Con?"
Bob dies, and everyone keeps coming to his widow with questions.
Lampshaded: "I think my husband meant to say..."
Invoked: See "Enforced"
Defied: Alice doesn't want to confuse fans (or incite fan wars), so she keeps quiet and lets fans come up with their own conclusions.
Discussed: "Alice, what do you think when Bob said _______?"
Conversed: "It might be better to ask Bob himself."