Part of the reason Discord falls short as a social platform is that each community is siloed off from the rest. There is no continuity bridging the overarching platform and userbase. I feel like for a social platform to work, the platform itself should be a community and the users should be able to carve out their own slice within that.
I've been working on a platform that blends social features from Discord with the discoverability of Reddit. What we're building is intentionally not just another Reddit or Discord clone. We're trying to create an all-in-one place for people to create communities first and foremost and not just posts/chat messages.