I can understand the trepidation, especially with writing and story. In any art, there’s always a feeling of being naked and putting it out there, especially when something is a work in progress. I think for visual stuff it’s easier, but that’s just a hunch. There’s something about words that gives anyone a queesy feeling when it’s in progress. Visuals are a little easier because the viewer is a little divorced for the artist, and is just dealing with an image, so they can bring it into their own imagination with less fear or connection and work on it in their heads. Words, well, words are very subjective. Almost anything creative with words is like diary writing.
But, as far as visuals, the nice thing about putting it out there while you’re still working on it is that other people can add something to it, often think of things you didn’t, maybe even suggest a direction you hadn’t considered that can be a positive. It can be a good thing, and it can even speed up the creative process. If nothing else, it keeps you from getting blocked, and can even keep the whole thing fresh and exciting. And it can also feel like you’re being pestered about your own art.
I guess there’s drawbacks and positives to anything. I tend to agree with the Disney quote that 3dementia has.