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If your feed has been flooded with content about the 'dangers' of western cities like London or San Francisco, you're not alone - it's part of a growing phenomenon known as decline porn, and it's driving narratives of political neglect and uncontrolled immigration.

On this episode, Marianna examines a niche take on this trend - AI videos which falsely portray zoos and waterparks in Croydon. She tracks down the original creator of these posts, and explains why they might not be as innocent as they seem.

Also, Matt has been investigating Clavicular - the internet's man of the moment. After signing up to his 'looksmaxxing' course, we discuss the controversial relationships propping up his virality, and what the mainstream media is getting wrong about the streaming sensation.

Top Comment is hosted by Marianna Spring and Matt Shea. The series producer is Laurie Kalus. The social producer is Sophie Millward. The technical producer was Gareth Jones. The editor is Justine Lang. The senior news editor is Sam Bonham. The commissioning producer is Nathan Jones. The commissioning editor is Rhian Roberts.

If you want to get in touch about something that's popped up on your feed, our email address is topcomment@bbc.co.uk or you can send us a WhatsApp on +44 330 123 9480.