Stop spreading bullshit. It's completely the opposite of all you said. You don't need to submit 1 post per day lol that is overkill, 1 per month is fine.
Post should be original yeah, or at least 90% unique if you are spinning. But it's not supposed to be top quality, researched or useful for readers. For God's sake, your readers will never read your Web 2.0-s, they are used for link building only and the content needs to be good for search engines only. However, it should be readable enough to pass moderation.