diberry - 3:07 pm on Apr 27, 2013 (gmt 0)
I too have had no luck with DCMA'ing hosts. If your copycats are well hidden, they'll have chosen international fly by night hosts who don't respond to stuff like that. If you got the whole host shut down somehow, they'd just upload a backup to a new host five minutes later.
Side note: someone around here once told me they were talking to a Bing rep when they brought up the issue of why Google indexes so many blatant copycats. The Bing rep said they don't know why Google does, because it's very easy to track when certain things first came online, and just never index the same thing twice.
Of course, my guess is that this is why Bing indexes fewer pages than Google, and indexes more slowly. Google probably does things differently because they want the index to be more complete and up to date, which I can understand as a business model. They later implemented the DCMA options to address the problems, but clearly that's not enough anymore.