Excerpt from this article:
“I asked my nan why she used ‘please’ and ‘thank you’ and it seemed she thinks that there is someone — a physical person — at Google’s headquarters who looks after the searches,” he told the BBC.
“She thought that by being polite and using her manners, the search would be quicker.”
…”I thought, well somebody’s put it in, so you’re thanking them,” she told the radio network.
“I don’t know how it works to be honest. It’s all a mystery to me.”