<<< I have found that one or two of our client sites that have dropped in rankings during the last 6 months no longer have "similar pages" listed. "Your search - related:www.example.com did not match any documents." All those with good serps do have "similar pages"
later ...Did I say something wrong or was it just a dumb posting? >>>
Not dinb. maybe premature. Now that Bourbon has come and gone, my site went 50% URL only (and the count is still rising) plus my "similar pages" went to none.
Doesn't sound like losing similar pages is a good omen.