I think? If you know how to send a Webmention, please do so that I know it works! 😂
The IndieWeb plugin adds a few semantic things to the user profile in WordPress and acts as a launch platform for installing a bunch of other IndieWeb related plugins.
The Webmention plugin adds support for, imagine this, the Webmention protocol. This should enable support for sending and receiving mentions.
The Semantic-Linkbacks plugin treats Webmentions and other linkbacks as proper comments and formats things in a nice rich way.
I have added all of these, but I haven’t tested any of them yet. So this post should play the role of general announcement and playground.