A man, who posted his opinions on an alleged fixture of the recent Britain's Got Talent final, was cautioned by the police under the Malicious Communications Act.
The anonymous blogger posed as a Sony BMG executive and alleged that Simon Cowell's production company, Syco, talent spotted 12-year-old-singer Ronan Parke two years ago and had fixed it for him to win.
Cowell called the police following prompts from about 150, 000 people who read the blog, after which the blogger was then tracked down by police and cautioned, which he calmly accepted.
The 52-year-old man, who cannot be named, suffers from mental health problems and admitted the hoax, following up with a written apology to Mr Cowell and Ronan's family.
A Sony spokesman added: "The man has admitted he has absolutely no connection with Ronan Parke, Sony Music, Syco, or Britain's Got Talent.