Dr Itziar Castelló says the move raises concerns about the quality of deliberation on its platforms and will ultimately harm democracy. Tony Cima reflects on the cloak of anonymity. Plus a letter from Phil Goddard

Meta’s move to scrap factcheckers is not about “complexity”, as it says (Report, 8 January), but to support Donald Trump and Elon Musk’s agenda.

It is widely agreed that effective, fast and unbiased factchecking is essential for the proper functioning of social media platforms. Similarly, principles of free speech are foundational to fostering communication and public debate in a healthy democratic society. Mark Zuckerberg’s announcement that Meta is to follow X in introducing user-generated notes raises serious concerns.