raph writes: "Another change I'd like to make soonish is to render real names in most contexts. The nicknames are cute, but I think they don't scale well. Of course, this kind of change is not rocket science, but those things are important too."

One interesting trick (in other situations) I've seen is to keep the nicknames, but store the real names in a title attribute, so they appear as "tooltips" in many browsers if you mouse over the nicknames.