Usage Statistics - Generated by Webalizer

A few years ago I was really surprised when I checked the statistics generated by Webalizer on my server - between the "Referrers" links I saw a whole series of links that led to drugs and adult websites! I just could not believe what I saw because no one ever came from the pages of such content. So from the first moment it was clear that that was some kind of obstruction.
At that time the statistics were publicly available. I realized that that thing primarily damage my reputation and secondly my pages lose PageRank! I sent one email to Google and explained that I don't know how it happened, but I will immediately investigate the whole case. Very shortly, I found that without my knowledge the server was flooded with spam. When I began to analyze more deeply I found that in fact there are a number of "infected" pages on the Internet.
Anyhow, I solved the problem, times have changed and Google has become much smarter :) If you search for Usage Statistics - Generated by Webalizer today, Google will now display only those pages that do not have active links - very clever!
Example (Attention: adult content):