Here is a weird one from Microsoft Bing, it seems to be tested “click to see full answer” in its search results answer section before showing you the answer. I mean, this seems super counterintuitive for a search engine to require an additional click, but hey – search engines test a lot of things.
I tried to replicate this in several browsers and even set my location the the UK, where I think David is based. I was unable to replicate this.
As you can see, it says “we are learning about how to make search more useful for you.” Again, I don’t understand why this click would be useful but hey…
Here is what I see:
Forum discussion at Twitter.