Stop bikeshedding formats and random features (likes, bookmarks, etc) and focus 100% on getting Webmention and rel="in-reply-to" working smoothly and integrated across the blogosphere.
Build on what works, instead of rejecting the entire blogosphere because of some guy's pet project. Forget about bikeshedding microformats and micropub/microsub APIs.
IndieWeb talks a lot about "standards" and interoperability and all this crap but at the end of the day the focus is mostly "let's replace Atom with microformats to do the same things, and argue about how to encode likes and bookmarks." The NIH syndrome regarding replacing Atom/RSS with microformats is incredibly counter-productive.
Start with replies to blog articles, build consensus, build software support, make it a success. THEN move onto replicating Facebook. Webmentions/replies can be done today with Atom/RSS. Just think if all that time spent on microformats was spent building support for webmentions/replies in existing tech stacks!