After so many people have suggested I reported the Dot Dot Shoppe to Etsy. And they take copyright issues very seriously. In less than 24h the shop owner left a comment on this blog saying she took the listing down (not out her free will of course, but because Etsy made her do so).
It was not Etsy that resulted in removing the listing. It must have been a fellow blog reader who was looking for a free pattern. Thank you whoever you are!
Here is her full comment:
Now if she was a decent person she would make her "original" pattern and construction method available for free for everyone to make up for the fact that her actions caused me not to offer my pattern for free. She was even kind enough to leave an email for you if you wish to contact her directly firstname.lastname@example.org .