This also combines really well with the Publish on your Own Site, Syndicate Elsewhere (POSSE) principle. Often, a post of mine syndicates well to multiple destinations. I might reply to a forum on my site and syndicate it to both that forum and to the Fediverse. People reply in both places, and Webmentions aggregate them together on my site (though I often have to send myself those mentions). I only have to write something once.
