> “You have SMS waiting from Dad, Jonathan and Florian”. The mightytext guys thought it would be more engaging to take a look into my recent SMS messages, pick up recent or popular contacts and use it to get me to use the product.

> To me this is crossing some invisible but very clear line. I haven’t used the product yet, and it’s already trawling through my personal stuff?

I'm confused by this example. Isn't this exactly the purpose of MightyText, the app he installed? It's routing your text messages through you server. Obviously their system knows what texts you are sending, otherwise how would it function? Also, the product has been used if you give it permission to access your contacts.