In WMT "links to your site" section, above the detailed lists of individual backlinks for each page, it says that these are the "top domains" linking to that page. Does the word "top" mean that the listed links are the most valuable in Google's eyes, and that backlinks not on the list are less valuable?
Because some of the listed backlinks are junky and spammy, why would Google say they are from "top domains"? Does it mean they are the best of a bad lot?