First, Public.me feels very phone-centric. Sure, you can load it up on a larger screen but it remains within phone-sized proportions. That’s a constraint that I think is likely to keep my activity here phone-focused, which is to say: not ubiquitous. Second: the lo-fi aesthetic. In Messages, I can’t summon up a user name with an @ sign if I want to mention someone, I have to know who I’m talking to. Likewise, I can’t summon a list of tags by tapping the # symbol. There are ways around this, of course— there are plenty of tag/snippet keyboards for iOS. But there’s something about the friction that I find appealing. I have to stay active in order to do things here. I have to think a bit harder. And that’s not a bad thing.