They don’t care. It’s that simple. I’ve (on Facebook/Instagram) reported scams, and they always say it doesn’t violate their community guidelines. But it turns out the computer “reviewed” my report, so I appeal it, and it’s always “sorry, but we don’t have enough people, so we’re ignoring this appeal. Here’s the report ID for the ‘review’ board.” On the rare chance a human does review it, they say “a human reviewed your report, and you’re right.”
They so much don’t care that, now, reporting scam/spam just says, “thanks for letting our system learn” without a way to make an actual report. I’ve given up reporting scam/spam.
For a real kicker, I’ve reported a literal terrorist threat-like post, and it was still “pending” after a week.