lucy24 - 8:43 pm on Jun 21, 2011 (gmt 0)

From the horse's mouth:

Avoid: allowing search result-like pages to be crawled - users dislike leaving one search result page and landing on another search result page that doesn't add significant value for them

Of course it would be far-fetched to suggest that if users don't like it --euphemism for "it drives this user up the wall"-- and g### itself doesn't recommend it, maybe they could tweak their code to simply ignore such pages in the first place.