I have a VERY different opinion about the way Quartz renders fonts. Quite frankly it's a fuzzy eyesore. I STILL think that most fonts looked better and were less strain on the eyes under Mac OS 9.x.
Yes, routinely turn off font smoothing (in the System Preferences > General menu, for fonts size 12 and smaller but I'd like to be able to do it for even larger ones.
As it is, I can't hack text for more than 2 or 3 hours at a stretch, but I routinely need to make a full day of it. Thankfully my employer still uses that "other" operating system.
I suspect that Apple could make text anti-aliasing an option for fonts of ANY size. So why impose its "experts'" value judgements on the rest of us. If some of us are just weird, so be it!