None of that matters for me though, because when I attempted to sign up from my laptop I got the message 'Sorry, we're mobile only'. I see no compelling reason to be mobile-only at full launch. Mobile-first for your MVP with early adopters, yes that makes a great deal of sense. But when a company does a full launch I think they should support as many of the major platforms as they can (Windows, Mac, Linux, Android, iOS).
Also, I am not convinced that we need yet another social media company (YASMC, "Yazz-em-see"?) that is centralized and will by necessity make money by monetizing attention.
Cal Newport thinks social protocols are the answer, as he discusses in http://calnewport.com/blog/2018/03/20/on-social-media-and-it.... I agree. I worked on this as the OASIS XDI technical committee co-chair for a while, and am working on something new now.