The Publish to WordPress for Obsidian plugin allows users to publish their Obsidian notes directly to a WordPress site. By setting up the WordPress URL and username in the plugin settings, users can easily publish their documents via the Command Palette or a sidebar button. The plugin supports YAML front matter for overriding titles, tags, and adding metadata like post IDs and categories. It supports both XML-RPC and REST API protocols for publishing, with a preference for REST API for better security and compatibility. This plugin is ideal for users who want to integrate Obsidian with their WordPress website, allowing seamless publishing of notes as WordPress posts.