As far as I am concerned a traditional kilt is a traditional kilt no matter how it is worn. One may be wearing it in a "non-traditional" manner, by wearing accessories that are outside the norm, or wearing them in an unusual manner. But none of that changes the kilt itself. I'd still consider a kilt made from traditional materials, by traditional techniques, in a traditional style to be a traditional kilt. You could wear it backwards, inside out, and upside down if you like, but the kilt itself will still be a traditional kilt.