WHEN WRITING FICTION BECOMES A PROFESSION INSTEAD OF A HOBBY: COMMAS

To polish off my writing, I have other authors critique my work. As payment, I critique theirs. Sometimes I find people who lack motivation about using acceptable punctuation, especially commas. They find it unnecessary to waste creative energy on such trivia.

Here is my response:
You are building a story. Think of it as though you were building a house. Nails may seem small and unimportant, but they hold the house together. You must apply them at the right places. Otherwise the house will collapse but it will have many nails in it in the wrong parts of the boards.