what don't things get moved to HN even with few upvotes and then disappear after a couple seconds?
So with 4 upvotes could just be it was its turn to be put on the front page but 4 people had already voted.
Also I thought there was some sort of thing that rewarded if you got a lot of votes quickly, like if you got 4 upvotes in a couple minutes it would probably push you to the front page and keep you there long enough to get more votes?
However take all that with grain of salt because I have never actually tried to figure out how upvotes work, this was just my not trying to understand at all sort of soaked up ideas.
