Retention comes down to content most of the time. There is no incentive for content creators… new users come excited by the promise but can’t find what they looking for, and convince their social network to onboard as well. Content and friends is what makes social media. The friction… whoever sells a product should handle smoothing it. I know it sounds simplistic. In the end users need to chose relays and blossom, get a set of keys, chose a client, find content and friends. Nothing more.