I've had a little back and forth with Matt Thomas on his blog and I think my points echo many here. He suggested that I write a patch. This was my response, which for me gets to the heart of the matter-- this was a solution for a minority which harms the majority:
"Look, I’m very appreciative that people create this fine thing, I praise Word Press all the time, but a comment like that makes me think that the people creating it have come to think that it’s strictly for hackers and code monkeys and DIY-ers. When it’s supposed to facilitate writing, from writers, who are people who may barely have enough sense to put bracketed I’s around something they want to italicize. For every person who sees that box as a place to code, I’d bet you there are 10 who see it as a place to write. And depriving them of something that has the look and feel of print, in favor of something that has the look and feel of junior high Fortran class in 1978, is failing the main utility test for that function by misunderstanding who the audience really is.
"But here’s my simple solution that fits both potential users: give people a way to toggle between monospace and standard fonts. The people who want to code can look at Confoundas all day long; the people who want to write, can write in something that looks like writing."