If you know anyone who works in marketing/PR, ask them how they use Reddit. That has been gamified as much as SEO since about 2020. I’m assuming, anything except “why is there a fire in this street?” kind of posts are just ads at this point.
I have no idea how intensive these are, as I most of these over bar drinks when I was traveling. Could've just been someone making stuff up as well. But my marketing friends have confirmed that they use Reddit very heavily, as it's a great sales funnel if you play it right.