A year and a half ago, Threads was but a twinkle in Mark Zuckerberg’s eye. Now, the rival to Elon Musk’s X has reached more than 175 million monthly active users, the Meta CEO announced on Wednesday.His announcement comes as Threads is about to hit its one-year anniversary. Back when it arrived in the App Store on July 5th, 2023, Musk was taking a wrecking ball to the service formerly called Twitter and goading Zuckerberg into a literal cage match that never happened. A year later, Threads is st...