I've been contacted by one of these art purchase scammers and as I was suspicious I googled the entire body of the email message. Found your blog with the exact text only that they have used a new name and email address.
Here is the info:
name: Sheila Fiske
subject: Art Purchase
I and my Cousin have interest in purchasing some piece of Art from your gallery hence i will like to know if you sell internationally (Belarus) and also if you accept (Credit Card) as a method of payment,if you do i want you to get back to me with your updated webpage, so that i can make choice of the Art to purchase from your gallery.
Your response is needed so that we can proceed.
I await your response.
Thanks for setting up this blog, what a great help !!!!
Wish you all the best,