Pixelart means that ever pixel is chosen individually and specifically, over any other pixel. If you palette is 16 million colours, this becomes impractical. In a given situation, which of #e6fc04 and #e7fc04 is the better choice? Is there even a difference? So you have to have a constrained palette, which more-or-less precludes any sort of antialiasing.
For my part, I have only ever seen one piece of antialised pixelart: the chain holding the elevator in the video game celeste. It looked awful.
For my part, I have only ever seen one piece of antialised pixelart: the chain holding the elevator in the video game celeste. It looked awful.