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Ask HN: Post goes from #1 to #30 in 1 hour with 170+ points?
Is there something in the algorithm that would make a post go from #1 on the front page to #30 instantly?
Can it be semi-flagged?
It's a popular post with lots of thoughtful comments, no politics, and certainly on-topic. 170+ points and 100+ comments.
http://news.ycombinator.com/item?id=2116062
- cd34 16y agoIf I recall earlier discussions about the decay of posts, age of the post + age of last upvote is modified by the number of total votes. As new posts get upvotes, their ranked score is enough to push older posts below. It is lunchtime in California, mid afternoon in the Eastern USA... it is entirely likely people are upvoting newer content.
- taylorbuley 16y agoA good way to help old content "decay" is to multiply the votes/relevance by the current timestamp (which is always greater than previous timestamps). If you, say, round to the nearest hour -- then there would be an inflection point come the next hour when a 59 minute turns into a 60 minute old post and gets its point total multiplied by a smaller bin than posts coming in during the current hour.
- trotsky 16y agoWhen people flag submissions that acts as downward pressure on the page position, similar to how a down vote would. There doesn't appear to have to be any moderator involvement (though if there is that will weigh heavier)
- elbrodeur 16y agoI'm assuming it was flagged because it looked like blatant blog spam: A repost of a post you wrote and submitted a year ago with a linkbait title.