From an indieweb perspective, it's probably far easier, more productive, and better interface hypothes.is both accepted the webmention protocol as well as sending webmentions. This way one could post their comments (highlights may be slightly tougher) directly to their Known (or other site) and the webmention protocol could handle the posting to hypothes.is. Similarly when one annotates a page, hypothes.is could webmention the page, so the post author/site admin would be aware that the page was marked up.

#hypothesis #indieweb