Should these two tags be merged? joints only has a hundred or so posts while doll joints has 3k, but not all joints are "doll" joints. I don't think there's really any significant distinction besides the size of the joint gap, and even then nobody distinguishes between the "actual" doll joints, ie the ones where only very thin grey lines are shown, from normal mechanical joints when tagging.
Is an alias from doll_joints to joints fine?