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A comment on Show HN: RSS Brain. Parent comment

Re:Show HN: RSS Brain by aflukasz on Saturday December 31, 2022 @07:53AM (#34196024)
Feeds (RSS, ATOM etc) often times contain only a small subset of recent items, like 10-15 of them. This means that if you limit yourself only to the feed themselves, you will lose track of upvotes at some point, for example after a day or two past the publication time of a given item.

Obviously this is something you have thought through, so I assume you just treat item disappearing from the feed as some form of indication it's not "trending" enough from the source point of view. Am I right?

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Re:Show HN: RSS Brain by wb14123 on Saturday December 31, 2022 @09:33AM (#34196743)
That’s correct. If the post is not hot anymore, continue monitoring new votes wouldn’t have much impact on the sorting, at least not the top ones. And because for sites like HackerNews and Reddit, once it’s not trending enough, it’s rare the upvotes continue to increase a lot. So this is a trade off I think makes sense considering the nature of RSS feed.
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