I've noticed quite a lot of images on Danbooru have this weird anatomy mistake nobody seems to pick up on, where the thigh is misplaced in images where the character(s) is seen from a certain angle. I call this "Long Thigh Syndrome" or just "Long Thigh", but I'm not sure if it describes it well enough. Admittedly, it's hard to catch, but when you notice it you can't unsee it. Their pelvis' simply don't match up with where their thighs are. I'm not 100% sure on this, but I believe artists do this subconsciously to "correct the perspective", or perhaps just to allow the viewer to see their butt. Either way, I'd like to request a new tag for this mistake; Here are a few images with this error.