I was a huge fan of sub-pixel anti-aliasing back in the day (and in fact still have it enabled on 10.13), but it matters far more on non-retina displays than retina ones. I think it’s proper for Apple to focus on retina displays — and iOS has never supported sub-pixel anti-aliasing, which I can only guess factored into this decision with the introduction of UIKit apps running on MacOS — but they’re still selling the non-retina MacBook Air. I won’t issue a final judgment until Mojave actually ships, but I suspect most Air users are going to think this makes text look blurrier.
Update: Looks like you can still enable sub-pixel anti-aliasing with a Terminal command.
★ Tuesday, 17 July 2018