I think tey will never fix it :(
Now, in 2015, and with Windows 10, it is still the same.
Some say, it is becasuse conventional cleartype (color mixed font antialiasing) cannot be used on rotated displays, like tablets, etc...
But, I do not have a tablet!
On the other hand, I had an android tablet, with 10" display, 1024x768 resolution, the fonts were antialiased, and it never looked so blurry.
This blurry, unreadable text is literally hurting my eyes.
Maybe on higher resoltion displays (for example 15", 4K display notebooks) it is ok, it is not visible, but I have a 23" LCD display, and I think most of us are using similar displays.