1) The document discusses the idea of a more "writerly web" where open writing and user-generated content is encouraged through various interfaces and conventions.
2) It explores different aspects of a writerly web including read/write interfaces, user comments, formatting options, linking, embedding media, and human-to-human communication through hashtags and retweets.
3) While some human-machine interactions are less generative, lowering the barriers to participation can still help accelerate a more generative and open web where people can readily copy, reproduce, and build on each other's writing.