I posted 5 chapters of my book here. So far Amazon hasn't found it. They do look very hard too. However, online publishing does not always prevent publishing. "The Martian" was entirely published online as a free novel. That was picked up by a major publisher and is a best seller. Hugh Howey, self published a book titled "Wool" a dystopian novel released in five parts. He has sold movie rights to the book and has written two more novels since.
If your writing is good, publishers will break the rules, especially when they can make money off your talent. If you want to share a couple chapters, you'll be fine. You may also self publish with little consequence from the big houses.
And if you are looking for quid pro quo draft editing and use MS Word to track changes, I'd be up for that. Beware that I write science fiction.
Cindi
Cindi
Cindi