I actually find it a problem (for myself at least but there probably are many people who feel the same) that we only seem to have Medium-like big-article blogging and Twitter-like SMS-y single-sentence microblogging platforms. I really want a hybrid, something in between, something for short posts but without twitterish post length limits, with markdown and media embedding support, letting you to edit your posts whenever you want and leveraging a HN-like first-class comments feature (instead of a Twitter-like response model). Google+ was the most close to this of what I've seen so far.