Forum Moderators: Robert Charlton & goodroi
...we're simplifying the way authorship is shown in mobile and desktop search results, removing the profile photo and circle count. (Our experiments indicate that click-through behavior on this new less-cluttered design is similar to the previous one.)
For more information on using authorship on pages of your website, check out
https://support.google.com/webmasters/answer/1408986 [support.google.com]
authorship snippets were far less common on the transactional queries where people were most likely to click ads.
Second, users eye tracking studies I've seen indicate that once a user goes into the organic results, they tend to stay there (unless there is nothing in the organics that meets their need).
Mark Traphagen (who occasionally posts here) made a couple of interesting observations on Google+ about the notion that author photos were dumped to encourage ad clicks:
The idea that Google removed author profile pix because it drew clicks away from ads is not supported by the facts. ;)