[HoLyVieR]

You forgot my personnal favorite :

"Lazy load content for speed and SEO benefits"

This guy either works at Google or doesn't have a clue of what he's saying. SEO is already black magic. That kind of claim requires heavy evidence which are simply not there.

[chrisguitarguy]

Hardly black magic. But there has been a lot of theories tossed around about page load speed influencing rankings. So it's understandable why he things that -- and google's addition of page speed to analytics hasn't helped stop the myth. Unfortunately, there's not a lot of solid evidence about it (yet).