Re:Instagram is listening to you: a scary experiment
by registered99 on Saturday August 26, 2017 @12:04AM
(#15104000)
If his friend or whoever he was talking about this product, most likely it's in their tracking cookies from them googling it. This is especially true since they are familiar with the product.
This discussion about listening came up a few years ago but about Facebook, who owns Instagram.
Previous Discussion: https://news.ycombinator.com/item?id=10360761