"Teens are receiving many unwanted DM requests (DMs from unconnected people)"

"1. Teens are receiving many unwanted DM requests (DMs from unconnected people), leading to integrity risk and slowing down new teen acquisition 2. Unwanted DM requests to teens are 'nearly all from people with no mutual followers. 3. We should default teens into a state that prevents others from sending them DM requests if they have no mutual followers." "DM's are the most problematic interaction vector for teenagers on Instagram, including bullying, harassment, and more severe violations." "Teens are 2x likely than non-teens to receive an unwanted DM request" "50% of DM requests to actual teens are from non-teens" "70% of DM requests to teens are unwanted" "95% of Unwanted DM Requests to Teens are From People with 0 Mutual Followers"