I use them from time to time. I'm not working on large codebases with collaborators, just my dotfiles and CSS and stuff. If I was auditing other people's code I

I use them from time to time. I'm not working on large codebases with collaborators, just my dotfiles and CSS and stuff. If I was auditing other people's code I don't think I'd want proportional fonts, simply because in code every character matters.