"/****** NYI ******/" in gstype2.c ln 455 stays since the repository was created. It may cause a CJK glyph dergradation at small resolutions. Rather Bug 687588 looks similarly, that one appears another story about stem recognition in True Types.
Enhancement still missing in Ghostscript 9.03
(In reply to comment #1) > Enhancement still missing in Ghostscript 9.03 We use FreeType now, not the Artifex Font Scaler, so this is surely no longer relevant ?
We won't further enhance the Artifex Font scaler as this is now deprecated, and will eventually be removed.