When studying AI models of image generation, I have sometimes encountered such recommendations of developers for composing hints: “use Danbooru tags” or “I used Danbooru tags to train this model”. Such recommendations are especially common for models creating Anime or NSFW style images. Developers note that using Danbooru tags will give better results when generating text-to-image or video in their models. Here is an example of using Danbooru tags, given by one user of the Animagine XL AI model for generating Anime-style pictures: it is better to say “1girl, beautiful” than “beautiful woman”. And instead of saying “short black pleated skirt”, it may work better to say “skirt, black skirt, short skirt, pleated skirt” ( source ). Many would agree that this is an unusual, perhaps outdated, approach to describing an image. But you should know it nonetheless.
You'll find the full list of tags, divided by topic here: https://danbooru.donmai.us/posts?tags=tag_groups . There are explanatory pictures for tags so that the user understands exactly what the tag means.