The counterpoint is that you should just keep your images at 10 bit minimum or 12+ bit until the OS/monitor can dither for you. Lossy compression will do much better with a 10/12 bit image than a dithered 8 bit one.
Absolutely! Higher precision is always better. But if you must go as low as 8bits, you should dither.
Absolutely! Higher precision is always better. But if you must go as low as 8bits, you should dither.