Reddit, the American online discussion platform, has overtaken X to become the fifth most popular social media platform in the UK, according to the communications watchdog.Ofcom said Reddit, where users post on discussion threads within topic-based communities, was visited by 22.9 million UK adults in May this year, compared with 22.1 million on X.The figures make Reddit the fastest-growing large social media platform in the UK and represent a growth of 47% on the same period in 2023. The leap t...