Comment Federation

[pfefferle]

The initial PR by @mediaformat is already so complex that it is hard to refactor things and make other things work, so I would love to re-start a PR to get through all changes step by step.

Starting with:

• Permalinks, IDs and Content-Negotiation for Comments
• Add Inbox of in-reply-to comment to CC (could be that commenter does not follow the blog)

Open Questions:

• How to handle hashtags in comments? Tags need to be added to a post, at leat the classic ones. WordPress.com has issues with custom taxonomies, so no idea how to support that. Any ideas @mattwiebe or @akirk ?

Proposed changes:

• Federate comments made on the WordPress blog (limited to WordPress users for now)

Other information:

• Have you written new tests for your changes, if applicable?

Testing instructions:

• Go to the comments section of one of your blogs
• Search for a comment from the Fediverse
• Write an answer to that comment using the comment form
• 🎉

[pfefferle]

@mediaformat this is a working first version. I would love to get your feedback on this!