Klatt's Clunkers 7: Bernard Klatt doesn't understand Rogers web caching

As we have seen, one of the key pieces of evidence in the Cools-post debate has been the IP 66.185.84.204 (which has the host name wc09.mtnk.rnc.net.cable.rogers.com). As I have shown at length in this post, the wc stands for web-cache. A web-caching proxy server keeps copies of web-pages in its storage in order to save bandwidth. This practice, now in Roger's past, is important for the present controversy for two reasons. First, Rogers proxies hid the IPs of the individual computers that they are proxying for, and it was the proxy's IP that was logged at the websites visited. Second, because the proxy is performing this function for tens of thousands of Rogers subscribers at a time, the IP by itself is of little help in tying any one of them to any specific post.

In his testimony, however, Bernard Klatt seems to have missed this important fact. Indeed, when the topic of Rogers web-caching arose, he pleaded ignorance.

Since the IP in question was a such a proxy, and in fact the single most relevant fact to the case, Klatt's admission has the effect of rendering his testimony useless.

Other posts in the Klatt's clunkers series:

• Klatt's clunkers 1: Bernard Klatt given an award for tendentious testimony
  
• Klatt's clunkers 2: Bernard Klatt wrong on IE 6 date
• Klatt's clunkers 3: Bernard Klatt misreads the user agent string
• Klatt's clunkers 4: Bernard Klatt mistakes the combined log format for the common log format
• Klatt's clunkers 5: Bernard Klatt doesn't recognize RealPlayer browser
• Klatt's clunkers 6: Bernard Klatt on Rogers service in BC
• Klatt's Clunkers 7: Bernard Klatt doesn't understand Rogers web caching
• Klatt's Clunkers 8: Bernard Klatt comes close on proxies
• Klatt's Clunkers: why Bernard Klatt should be disbelieved (summary thread)