Yeah sorry about that - I see cryptic errors in the server logs popping up at random. I think it must be something to do with the scale of requests coming in and breaking the site in some way I don't currently understand. I have near zero experience with scaling web sites, if anyone who does is passionate about meta research you're very welcome to look through serve.py and help me out.
One of the problems I caught: error: [Errno 24] Too many open files from tornado. Trying to fix (edit ok made ulimit -n larger and I don't see this error anymore at least)