[PaulHoule]

I would also be concerned with how these things scale in terms of the display.

For instance somebody might have a HiDPI or Retina screen or they might be zoomed in or out on a particular web page. Or for that matter maybe you want to scale the size of the image so it fills the screen horizontally or vertically.

The scaling algorithm might maintain the the dither or it might smooth and blend it. Maybe it looks OK in the end but I wouldn't take for granted what happens.

When I zoom in and out on that page some of the images like the greek guy do OK consistently, but the dither takes on an unpleasant structure at certain sizes of the ocean image.

[cobbal]

Not to mention the fact that dithering will look different depending on the display’s gamma calibration...

[PaulHoule]

One thing I like about my Gameboy 3DS is that the display is consistent and artists can tune art up for it.

For some game series (say Hyperdimension Neptunia) fan art captures the essence of art in the game but for the big Nintendo games on the 3DS (say Fire Emblem Fates) fan art doesn't look like the game art at all because the game art is calibrated to the characteristics of the display in every way.

[anentropic]

Yes, will almost certainly get weird or ugly moire effects if dithered images are not rendered 1:1