[onion2k]

Most people say they are, but when you actually measure it you find engagement metrics are better for SPA sites, especially for ecommerce and social. Quite simply people spend more money if they can click fewer times. And thus we have things like infinite scrolling and ajax.

[pseudalopex]

Engagement metrics measure what people do. That may not be what they want.

[simplecomplex]

Care to link to those measurements ?