Engagement is meaningless without knowing the sentiment behind that engagement. It's easy to see how many people are talking about your product (and it's not ju

Engagement is meaningless without knowing the sentiment behind that engagement. It's easy to see how many people are talking about your product (and it's not just TV producers who care about their product in this way); what is harder is to find out if they like it or not. You present it as creepy, but (as long as we are only talking about public data like Twitter) I welcome it. The better the analysis, the better product developers can do at creating products I actually want. The danger for product developers is always building products that are just slight tweaks of the previous product (see the movie industry for example).