Probably because both those links specifically say you can rotate text 90 and 270 degrees. You can't invert the text quite so easily, you have to draw a rectang

Probably because both those links specifically say you can rotate text 90 and 270 degrees. You can't invert the text quite so easily, you have to draw a rectangle with text in which can then be rotated any arbitrary degree. Next time you trawl bug reports looking for anti-Linux material, try reading them more carefully.