http://bugs.winehq.org/show_bug.cgi?id=10342
--- Comment #13 from Alexandre Julliard julliard@winehq.org 2008-07-21 04:29:48 --- (In reply to comment #12)
Wine doesn't render fonts on its own, it uses Freetype for that task. Subpixel rendering (or ClearType) must be done by the fonr engine, not by a client application. And since subpixel rendering has been disabled in Freetype due to patent reasons this bug is both invalid and wontfix.
The bug seems perfectly valid to me. There's no reason that Wine shouldn't be able to take advantage of subpixel rendering where it's supported.