'The Man with 1000 Kids' sperm donor Jonathan Jacob Meijer said his children should use a symbol on social media to prevent incest

• Jonathan Jacob Meijer is a prolific sperm donor who is the focus of Netflix's "The Man with 1000 Kids."
• Meijer told a court in April 2023 that his many children should use a social media symbol to prevent incest.
• He recently said he wasn't 'serious' but fears around incest are 'outdated.' 

Jonathan Jacob Meijer, the prolific sperm donor who is the focus of the show "The Man with 1000 Kids," said that his children should use a symbol on social media to avoid unwittingly having incestuous relationships.