An interesting discussion. Speaking of rules and rules breakers, I'd like to drop Cormac McCarthy's name into the mix. I love reading the man's stuff, but he drives me absolutely mad with his refusal to use quotation marks. He follows only three rules:
1. No quotation marks.
2. No semicolons. Colons are okay for lists.
3. Simplicity. Too much punctuation acts as an obstacle to the story. “I believe in periods, in capitals, in the occasional comma, and that’s it.”
If I recall correctly he doesn't use dialogue tags of any kind. Not even the word "said".
I enjoy his work but find it confusing at times. He's not great at identifying which character is speaking. Following longer bits of dialogue can be tedious. In "The Road", he doesn't give his two primary characters names. He uses only the terms "father", and "son" to identify them.
Joe