Sometimes it is shocking how few upvotes you need to get to the HN frontpage.
Using wsb as an example, you used to see quality posts with 20 upvotes then the 2020s roll around, bots and scrawlers started inflating the needed numbers and even with thousand of upvotes, some posts were blatant ads after wsb proved it had alot of wealthy eyes.
The main pages of reddit have the same problems full of bots that flood into selected posts almost immediately after it gets posted, this is especially obvious during election years, where billions are burned to "let us discover what the popular concensus is".