>>2796475One thing to keep in mind is that the tags would have to exist on the images the model was trained on. Throwing random words in there won't do much. For instance, "blurry", "lowres", "jpeg artifacts", and "missing finger" are real tags in danbooru, and usually can be found under the meta category. This is also the same reason why "highres" and "absurdres" works in the positive prompt.
https://danbooru.donmai.us/tags?commit=Search&search%5Bcategory%5D=5&search%5Bhide_empty%5D=yes&search%5Border%5D=count 