No, I don't hate Joyent. I can't even figure out what they offer. And I don't see "Python" or "Postgres" or "Redis" in their tech stack page, so what would reddit (a Python / Postres / Redis site) want with them? They seem to be mostly node.js / Mongo, which is a nice tech stack but isn't the one reddit is built on.
Clicking around their dev docs seems to suggest you can install your own stuff on their "SmartMachines" (are those Linux VMs?), but there's a heavy node.js bias to the docs.