Nearly all photographs benefit from minor sharpening when reduced to thumbnail
size. It would be nice if MediaWiki automatically applied some sharpening to
all JPEG thumbnails. The ability is already there in GD and ImageMagick.
Ideally there would be a way to disable it (I'd suggest |rawthumb| rather than
|thumb||for thumbnails with scaling only) but given how thumbnails are used this|
doesn't seem strictly necessary.