One of WhatsApp’s founders used Craigslist as an example of his ambitions for the messaging service, Zuckerberg testifies, calling the site a “lifestyle company.” And rather than buying WhatsApp to prevent its growth, Zuckerberg says he had to convince its founders to add social features post-acquisition. This cuts against the FTC’s theory that WhatsApp might have grown to challenge Meta’s dominance had it remained independent or under different ownership.