lucy24 - 6:12 am on Sep 27, 2012 (gmt 0)
The publisher isn't anonymous. The "publisher" is the site itself. "I read it on wikipedia"-- how many people look up the author of an individual article to find out if it's someone reliable?
It's always two things getting conflated. Attribution and appearance. Is a source more reliable if you know the author's name? if you know what the author looks like? Would postings at WebmasterWorld carry more weight if they included avatars?
All things being equal, are ordinary humans more likely to click on a search result if it's got a picture next to it? (Does google know? Are they studying the question systematically? Will the information ever be published or leaked?)