Well aware of copy cats. One started out stealing design ideas from a very successful site, then, also helped themselves to the site owners descriptive wording.
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Now, this copy cat has opened a new site to look very much like the site that they have been copying, and had the nerve to also mimic the very unusual banner, and made a very similar site title for this new site by mixing up words a bit so that the two sites can be confused.
Now the two sites look similar if you are just scrolling through as a viewer.
The blatant way in which people do this is unbelievable and makes one feel helpless.
Not much you can do, and the only thing one can do is take every step to protect themselves from copy cats. Document, document, document.
This is a serious thing that I wish etsy would address more in depth.