Tangent: I decided to sit down and read that RFC yesterday. So I downloaded the PDF to my e-reader (because it doesn't support mono fonts for the plain text option). Turns out my Kobo H20 for some reason can't render the "fi" and "ff" ligatures, which made it a real struggle to read at times ("compressed les", "Human Encoding Trees").
Does anyone have any advice for how to turn plaintext RFCs into minimal PDFs with an embedded mono font?