[recursv_thnkng]

Discord’s architecture is easily shard-able by channel, though. There’s no shared “multi-channel” experience like workspaces in Slack. Sure, users can message each other directly which could cause some complexities but the volume of DMs is likely a fraction of the channel message volume. Twitter is a mess when you try to think on how to break apart the architecture across various users, regions, celebrity accounts, trending topics, etc. Back in the day they used to allocate servers just for specific celebrities just to give an idea on how they were trying to scale.