Forum Moderators: bakedjake
If nothing else, Google has taught every search engine something very important -> users need to be able to grasp, and quickly figure out how to use it, else they will feel overwhelmed, confused, and frustrated.
I know I did, when looking at that SERP, and most users, afaik, don't immediately proceed to the 'how do I use this?' section of a website.
Still, it is an interesting concept for a vertical engine.