This is absolutely true. I took a survey through MTurk from Google, from back when they were reworking the "ad" icon on search results. They wanted me to quickl

This is absolutely true. I took a survey through MTurk from Google, from back when they were reworking the "ad" icon on search results. They wanted me to quickly select the first non-ad, with different "ad" icon styles (same color as rest of text, different shapes, etc).