Facebook behemoth Meta officially launched Threads, its text-based rival to Twitter, on Wednesday — but its release in Europe has been delayed over data privacy concerns. Threads is the biggest challenger yet to Elon Musk-owned Twitter, which has seen a series of potential competitors emerge but not yet replace one of social media’s most iconic companies, despite its epic struggles. The app went live on Apple and Android app stores at 2300 GMT with accounts already active for celebrities such as Shakira and Jack Black, as well as media outlets including The Hollywood Reporter, Vice and Netflix. “Let’s do this. Welcome to Threads,” wrote Meta chief executive and Facebook founder Mark Zuckerberg in his first post on the new platform, which will run with no ads for now. The app was introduced as a clear spin-off of Instagram, offering it a built-in audience of more than 2 billion users and …