And, interestingly, Schnack notes that you can also employ Discourse (the Ruby on Rails, marketing leading #FOSS next generation forum+ platform)... As it happens, I have a couple of them lying around...
@lightweight it's very interesting but I think we should take advantage of ActivityPub and connect blog sites with it i.e. publishing posts as AP's Articles and comments as Notes. Also, it should be possible to make sites/instances act as clients in AP's client-server protocol and enabling "cross-site actions" like replying with a comment. See attached mockups!
@alexl I fully agree with the idea of using ActivityPub in this context... Are your mockups related to a specific project or just ideas at this stage?
@lightweight just an idea, I'm trying to understand what protocols are needed to achive this user experience