Your fight against phishing sites has only just begun
Indeed. And it just occurred to me that although I've talked about this not long ago, I didn't warn eXch explicitly:
From what I've seen not so long ago on another website that became very popular and next the number of phishing sites started to grow, the next step was that the phishing sites started reporting the original site (!!) to search engines as copy/clone/fraud (!!).
Imho you (eXch) should think one more step ahead and prepare your homework well.