JPEG-XL (someone already mentioned it as .jxl below) image files.

• competitive with AVIF compression levels
• not recycling video compression, so you get benefits like progressive loading
• JPEG transcoding - can take existing JPEG files (so much of the existing images online) and shrink their size by ~20% with literally no change to the presented image, and this is easily reverable. The amount of data this would shrink without risk of altering the data is HUGE.

There are a ton of other benefits but those are the three I’m most excited about.

Spice/spiced could work. But it’s still an allusion, not sure if that defeats the point.

For example, 4chan forcibly invented the use of the ok hand for “white power”, as a collective prank

Which, outside of specific contexts where you’re already confident someone is a WN, was quickly forgotten and never really took off. It’s not a great example of a social shift.