Quill enables you to post text, bookmarks, likes, and other kinds of posts to your own wbesite
Quill does not store your posts itself, but does cache the last response from your website and provides it to you for debugging purposes.
If you connect Quill to your Twitter account, Quill can favorite tweets on your behalf when you favorite a Twitter URL. Quill will never post anything to your accounts without an explicit action on your part.