Oh, no argument from me. I said I knew plenty of people I admire, and who are way better than me profesionally speaking, who can code with 1366x768 displays and dismiss the urgency of getting a better screen. In this sense I meant that it's not time to upgrade your monitor: it's simply not that urgent to own the highest DPI screen you can buy.

Me? I can certainly code with a poor quality 1366x768 display (doing it right now with this Dell Inspiron!) but I hate it. I'm not a 4K snob, but I do like better screens!