Am I missing something?

You are probably missing the text in the information next to it telling you that it has been referred for manual review for security reasons. That's no cause to panic unless you have violated the ToS.
Is there like a specific reason why some people get that? Like what do they do to get manual review and why does it take time for them? Extra than other people? I am asking this because I have been here for a very very very long time, so much so that I remember the very early first days of this place with ads and so forth, hell I once gave my own ad here, it was 1.1 bitcoin I believe and bitcoin was cheap those days, so it wasn't really expensive.
And even though I have been here for like maybe 50%+ of every month for that many years, I still never received it so I must have done something right, or keep doing it right, and wondered if I never got asked, was it something else that gets people in this?
It's an anti-fraud system designed to catch botting and multi-accounting abuse. If I told them what they did to get flagged as suspicious they'd all quickly find ways to abuse without getting blocked.