BUR #8724 has been approved by @nonamethanks.
rename ears -> ear_focus
create alias ears_focus -> ear_focus
Opening the BUR before I put in the work, to see what people think. Ears are barely visible in most of the results for ears, so it's an abortion of a tag as it stands. If there's no pushback I'll clean up the tag like I did with eye focus.
The cases of ears in weird places mentioned in the wiki should have their own tag, not be hidden and unsearchable like this.