The magic of a good caption is subversion . The image shows a woman smiling at a sunset; the caption reveals she is a digital ghost trapped in a screensaver, screaming for help. The image shows a business executive; the caption reveals they are a dragon in human skin. Caption Booru thrives on the tension between what the eye sees and what the brain reads.
Then came (now "DeviantArt" again, but post- Eclipse). For years, it was the king of captions. However, the "Sta.sh" writer interface was slow, and the site’s algorithm favored visual art over text. Caption Booru
Typically, these captions range from 50 to 500 words. They are overlaid on an image (usually via simple text editing) or posted alongside the image file. The content is highly diverse, but the structural DNA remains the same: The magic of a good caption is subversion