[logfromblammo]

The article leaves open the possibility that left and progressive readers are switching to other search engines.

We cannot draw our own conclusions unless we also know about changes in total traffic to the sites, in addition to change in number of visitors referred by Google search.

[chiefalchemist]

Or, just getting similar news elsewhere. As a fringe cause (if you will) goes mainstream (so to speak) some of the core infrastructure gets left behind.

You sell yellow widgets. They catch on. I start to sell them as well. I could very likely steal market share from you.