Note that screenshots are not going to be representative of what you'd see in reality if you're viewing these screenshots on a "non-retina" display. So whilst technically interesting, in that these screenshots can show us how font rendering works when scaled, it's not representative of what you'd actually see if you had a retina display.
This is definitely true. Also, it's worth noting that I had to fake the screenshot - screenshots taken in "more space" mode are taken at the res they're rendered at. I took a screenshot of my screen at that res, switched back to "best for retina", put the screenshot full-screen and took another screenshot of that. It looks pretty much the same to me, but there could be subtleties about the live downscaling that the OS is doing that are different when it's a screenshot vs the actual screen.
Thanks. This is very representative of the font rendering quality I am talking about. (I.e. this is what it looks like in real life too, with your eyes.)
Instead of the normally very crisp rendering, you get this bloated/fuzzy look.
