IndieWeb isn’t about getting Webmentions working, or being able to post to your blog from an app on your phone (as happy as it makes me to be able to do so). The technology is fascinating, but if you’re focused on the technology, you’re missing the point.
IndieWeb is for simplifying. It’s for putting your thoughts out into the world in a space that you own, and thus, don’t have to worry about. Your presence on your own website can’t be shadowbanned or cancelled, your data sold – there are no arbitrary terms to run afoul of except your own. It’s a weight off your chest that you didn’t know was there until you publish for the first time and see it, live and of your own making, on your own domain.