One of the things that I do like about GitHub is actually the community/social aspect. For example, I follow projects I am interested in, and I can see notifications from all of them on one page--without filling up my email inbox. I also follow users who have similar interests, and I often discover new projects when I see in my feed (which I read via RSS) that they've starred a project that sounds interesting.
I think it's great that you're supporting email as a first-class way to interact with the services, but will there also be anything like GitHub's "Notifications" page?
Another feature I enjoy on GitHub is the ability to view issues and PRs across all of my repos from a single search page (e.g. search for "user:repo-owner-username is:issue"). Will sr.ht have anything like this?
Thanks for your work and for sharing it freely.