It really does ruin art and stories for me when they put her in ridiculous furisodes and such things, the only time its really ok is when she is coming dressed or bringing the clothing from her own time period.
Tho really if you look at sesshomaru and what other demons tend to wear, there is definitely hints of chinese influence still at that point, so chances are they wouldnt dress her totally human clothing anyway, much less some modern style kimono -_-
or what another forum i belong to lovingly calls 'Kimona' aka bath robes, wierd poofy dresses with giant bows on the back, chinese style dresses and lots lots more all presented as Kimono
but then i own and wear kimono so i definitely have a first hand knowledge of what they really are, too many people think long dress with dragging sleeves and a big bow on the back which generally creates something not even close lol or they think you cant be sexy in a proper one so they make it look strange and form fitting