After analyzing a large cache with significantly declining hit ratio over the last months I have came to the conclusion that the removal of cache deny QUERY can have a very negative impact on hit ratio, this due to a number of flash video sites (youtube, google, various porno sites etc) who include per-view unique query parameters in the URL and responding with a cachable response.
Because of this I suggest that we add back the cache deny rule in the recommended config, but leave the refresh_pattern change as-is. People running reverse proxies or combating these cache busting sites using store rewrites know how to change the cache rules, while many users running general proxy servers are quite negatively impacted by these sites if caching of query urls is allowed. Regards Henrik
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