> So that the complaining party can get back to you, please provide both your telephone number and physical address.

Ahhh I see that the DMCA is still a wonderful doxing weapon :)

well, if this is the author of the book, they probably have their contact anyways. And if the claim was clearly illegitimate and the owner didn't want to provide this, I guess he could try going without it. There are probably easier ways to dox people