As a SELLER or a BUYER on Etsy, you should check your settings on the site.
Along with the changes to create CIRCLES on the site, your name and buying history are now public information by default settings on your account. A GOOGLE search on your name can reveal all purchase details and the viewer can then find you on facebook or elsewhere.
Read this article for more information:
Etsy users irked after buyers, purchases exposed to the world
By Jacqui Cheng | Last updated about 17 hours ago