Earlier quoted context omitted.
We're building a tool that does something similar but for email. Currently we're targeting cold sales emails- the idea is, you enter a recipient's email and we aggregate data about them and surface relevant, personable sentences that you can use in the email. You'll also be able to change the tone of these sentences (funny, professional, casual, etc.) Learn more: http://emailfox.co
That's ... disgustingly creepy on first glance.
How do you mean? A tool to help you relate to the folks you're cold-emailing? It seems like a way to find common ground.
Maybe I am misreading you, but perhaps you think the effect is a dishonest one? That because the language EmailFox helps you find isn't the phrasing you improvised at first blush, it's not your copy?
If the UX is strong, think of the wonders this could do for non-fiction writing!