Sure, but there aren't many good writers that don't know how to use punctuation correctly. Hence, errors usually mean bad writer.
And if the mistakes are frequent, it very much does affect the quality of the writing. It's distracting and breaks flow.
This!
I swear, the amount of excuses people make to justify not trying and staying mediocre... These types of conversations get me heated, so I'm going to drop in why this matters beyond surface level of observations of just "X does this" and "I mean, I've seen people not do it, so it's fine."
Here is the WHY real quick. For grammar and punctuation, as based on both A Dash of Style and The Science of Storytelling.
Grammar isn’t just rules—it’s your tool for directing the reader’s imagination. It tells their brain what to picture, when to picture it, how clearly, and from what angle. If you understand how grammar shapes mental images, you can write scenes that feel vivid, immersive, and real. Ignore grammar, and you risk confusing the reader’s mental movie or making it blurry. Use it well, and you control their hallucination like a pro director.
Now, if grammar is the director guiding what your reader sees,
punctuation is the editor controlling how they experience it. It shapes rhythm, emotion, tension, and flow. Punctuation doesn’t just make writing clearer—it makes it
feel a certain way. Use it with intention, and you can slow time, speed it up, create suspense, or deliver a punch. It’s not just about correctness—it’s about control, style, and power.
Think of punctuation as your
musical score. It’s what tells the reader
how to hear the sentence in their head—when to pause, when to rush, when to breathe, when to feel tension. It’s rhythm, mood, emphasis.
- Periods create finality, a stop. Hemingway used them to punch.
- Commas offer balance, flow, nuance.
- Semicolons string thoughts together with weight and complexity.
- Dashes are dramatic, alive with energy and surprise.
- Ellipses can stretch time, show hesitation, or imply more beneath the surface.
You’re not just writing sentences—you’re conducting an emotional and psychological experience. Punctuation is your baton.
That's why simple things like the comma and period matter. Some of it is unnecessary, like that example on the previous page that used an action beat and a tag after the dialogue, when you don't need both, as they have already completed their function. Writers who don't know this stuff and don't care are likely to not know or care about many other things, which is why they're untrustworthy and thus easier to ignore.