Currently coat_on_shoulders is aliased to jacket_on_shoulders, and naked_jacket is aliased to naked_coat.
To make matters worse, jacket_on_shoulders implies jacket, so a post like post #3868075 has both the coat and jacket tag.
According to the coat wiki, a coat and a jacket are two different things. But the naked_coat wiki says that a jacket is a sub-type of coat.
I feel like a clear definition should be made once and for all, to also restore consistency.