One minor difference you'll see in #writefreely: "Anonymous" posts are called "Drafts".
This is a great use for them already on @write_as, so they'll retain their function, but now the name will match.
@jzacsh @write_as In this first release it'll behave exactly the same, so the "draft" will still be a post on an unlisted URL. The thinking is that this will be useful for sharing a post you want someone to proofread before publishing.
But in the future / based on everyone's feedback, maybe that'll be something that's configured with the server, so drafts can optionally be truly private (accessible only to you)