Was used to HDPI screens at home and previous gig. Now at work with Linux and some cheap Dell 24"s: just zoom like 200%, until text is huge. If you only fit 80 cols like god meant to, type will be clear, you can have your monitor further away, improve your posture and eye strain. Code might even get better.

Guess coders care little about typography, like everyone else, mostly out laziness and lack of appreciation.