system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is Facebook's rationale for having my friend's comments on strangers pages show up on my feed?

I understand Facebook does many things to gather data/increase monetization. But I don't understand how showing friend F comments on their friend G's (a stranger to me) page, on my feed, gathers data/increases monetization for Facebook. And on my end, I can't remember ever engaging with one of these conversations because I don't know G so I wouldn't comment on G's page. So if it doesn't appear to help Facebook or me, what is Facebook's rationale for showing these comments?
gpt
They're hoping that you and G become friends.

Either you know each other in real life but haven't become Facebook friends yet, or perhaps you haven't met but you join in the conversation and become friends.