I've met people who do this. It only works in some languages. The status quo is certainly to use a fixed-width font and many people's formatting habits depend o

I've met people who do this. It only works in some languages. The status quo is certainly to use a fixed-width font and many people's formatting habits depend on this. Very quickly it isn't worth the trouble. Seeing it in action though I think it will be the long-term outcome. I suspect the use of text to provide structure will subside in the next few decades. We have better user interface tools now. Light table and some others have demonstrated this. In that environment variable names and strings could be rendered in a regular font. I suspect this would be much more pleasant to read if structure was maintained consistently outside the font.