The BBC has stopped posting on Threads, a platform by Instagram, and is instead maintaining its presence on Mastodon, a decentralized social network. The BBC had announced a six-month experiment with Mastodon earlier in the year and has self-hosted its content on a custom domain. The reason for the BBC's decision to abandon Threads is unclear, but possible theories include concerns over Meta's geo-banning of Canadian news outlets and the lack of a public API for automating posts. The BBC's move is part of a larger trend of brands abandoning Threads due to lack of engagement.