It would be nice if instances automatically maintained a new and low connection count user feed so that people could browse it occasionally and help people find others to connect with.
That could be done either as part of the instance software or via a bot that runs through the instance user list and updates the feed every so often.
They also spew tens of thousands of DNS requests per hour if you stick them behind pihole or another ad black hole revolver.
My mom’s Roku TV accounts for like 90-95% of all DNS requests on her network.