I think I know now why my initial impressions of MonoRail weren't very good. While they were adhering to the letter of the Ruby On Rails ideas, they weren't really getting with the spirit. And example would be the MonoRail homepage - it's a wiki. And their docs are all over the place. And setting up a MonoRail project isn't as simple as typing "rails project" at a command line. There are lots of examples.
Apparently Lesscode Is Not About Quantity. I agree. It's about the idea, the practises, the spirit of it. It's not enough for MonoRail to copy Rails and try and shoehorn it into a .NET environment. It needs to be adapted to use that platform's strengths.