How much should I refer to an anonymous reviewer's extremely helpful revisions? I am in the enviable position of receiving an anonymous review from an extremely knowledgable member of my academic community and am incorporating all of their excellent suggestions into my article.  Quite rightly, I want to flag the examples and suggestions they have provided me with, but at what point does this get embarrassing and look like sucking up?  I don't want too many footnotes with, "with thanks to an anonymous reviewer for this..." but at the same time I don't want to pass of their extensive knowledge as my own.
It's minor revisions and the editors have said they will not be sending the article back to the reviewers.  So I'm not including their suggestions because I have to appease a reviewer, but because they're actually great bits of wisdom.
An ack is all that is needed. "Thanks to the anonymous reviewers for their suggestions, many of which were very helpful". Don't try to point out where those suggestions occur or your paper will be difficult to read. You retain full "ownership" of the paper so write it like it is the work of a single mind. The reviewer almost certainly sees it that way. 

About one time out of, maybe, ten thousand or so, a reviewer's comments are so helpful that the nature of the paper changes and it becomes appropriate to find a way to work with the reviewer as a co-author.