That's exactly why I leave it turned off. IMO it does exactly the opposite of what it's supposed to. The subpixels used to extend font edges just make it look fuzzy to me.
-Vurbal
Just to make sure: ClearType is properly configured? There's a couple different layouts for subpixels (think red-green-blue or blue-green-red), and it is badly configured it can look absolutely terrible.
Besides that, I can understand liking a Cleartype-less font; it indeed does have some charms.
-worstje
I've played with the options quite a bit and even went to the trouble of verifying my monitor has RGB rather than BGR subpixel ordering. As with video compression it's all a question of which imperfections your brain can ignore. For me the answer is typically none of the above.
I also can't rule out some of the problem being with my particular monitor. The built-in gamma correction is horrendous. In order to get approximately correct colors I have to reduce the gamma to 0.8 in the ATI Vision Control Center. I've never owned a laptop with a high enough quality display to make a useful comparison.
Based on what I know about how human vision works I suspect if it were possible for my monitor to change the subpixel order, ensuring green were always on the very edge, it wouldn't be a big deal. Green frequencies account for the vast majority of our vision, followed very distantly by red, and even more distantly by blue. I never notice green edges on fonts with ClearType but red and blue edges just make characters look smeared to me.
But like I said, that's a me thing and I have the same problems with my other senses - particularly hearing and touch.
(And compression artifacts.. depending on the kind of compression and the degree of it, I can't stand it either. But it is very situational for me.)
Part of my problem with video artifacts probably stems from years spent studying and experimenting when I wrote a lot of tutorials on the subject. I usually avoid pointing them out to other people since I figure the less they see, the more enjoyable the experience will be.