You know what I miss? StatusNet's tree-based threading.
Some of the best and most formative threads of my life I read on 20 post deep StatusNet threads
I guess the one Zen of Python item I disagree with is "Flat is better than Nested"... well, depending on the context!
@cwebber I wonder if this is because showing nesting on a portrait phone screen rather than a landscape desktop screen is harder.
Octodon is a nice general purpose instance.