When we read books, we don't expect to find errors. When we want to enjoy a poem or piece of writing, errors and awkward grammar that isn't done for a purpose can take away from trying to really feel what the author was trying to convey. But I've seen a lot of writers who don't think they need to edit, because if they were to publish, someone would do that for them. And they're absolutely right! I mean, an editors whole job is based around fixing up the words that an author writes. But does that mean that we never have fix our writing? No, no it doesn't. Absolutely not. If you're looking to get feedback on your work, you should absolutely do a base edit. Otherwise, the errors will detract from the writing so much that you might not be able to get valuable feedback, as the reader will be caught up on the writing. Additionally, editing can help YOU learn more about your writing! Did you make a weird leap in logic? Did you not research one section of your work too much? Called the wrong character a certain name? All of these things can be cleaned up by the author. And that's not doing the editors job for the them: an editors job isn't just about copy edits, but about things the author /cannot possibly/ see for themselves, like gaps in understanding that are caused by the author having so much knowledge of a subject that they don't even realize that anything is missing form the text, because it's in their brain. I'm getting off point: my point is, I think editing does matter. Even if just posting something for a quick bit of feedback, it does you good to edit. People will be able to enjoy your writing more, and really respond to that, rather than to the mistakes. Don't worry too much, though, as mistakes are completely natural!