Comment by tabtab

There's a problem bigger than Pinterest here: images AND any content that is not where Google expects them or can link to. The "infinite scrolling" fad contributes to this as there is no longer a page to link to. Google and Bing should penalize sites for making it difficult to link to specific images and content.

For example, they can create a "2 page down" rule. If it takes more than two presses of the Page Down button (or equivalent per mouse/finger) to see indexed content, then penalize their rank score.