If words provide the meaning for writing, punctuation provides the cadence and nuance. Like words, if the meaning is not common, there is no understanding.
In a recent submission, the writer punctuated the entire ten pages using ellipsis ( ... ). She used ellipsis in place of commas, dashes, colons, semicolons, periods, etc. Every time I encountered one of her ellipsis, I was forced to stop reading to try to figure out what she meant by it. It was the equivalent of writing in English and occasionally throwing in a gratuitous word in Sanskrit. It breaks the flow of the story and pulls the reader out of the reality the writer is trying to create.
There is a purpose for standardized punctuation. It isn't just a foible of anal retentive people. Writer's need to learn the basic elements of grammar and punctuation if they want their work to flow. I don't do it correctly every time, but I am trying to learn the rules. In addition to style guides, Lynne Truss's funny and informative book Eats Shoots and Leaves is an excellent source for learning how to properly punctuate.