I measured the half-life of 41,301 Show HN launches. It's 7 hours
I scraped all 41,301 Show HN posts from the last year. Half the comments a launch will ever get arrive inside 7.2 hours, and success doesn't slow the clock. I scraped every Show HN from the last 12 months (41,301 posts) plus the full comment tree of every launch with 10+ comments, ~100k comment timestamps, all from the Algolia HN API.

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HN-demo.log-store.com HN comments and stories in log-store
news.ycombinator.comTL;DR: I loaded all 37M comments and stories into a demo version: hn-demo.log-store.com I created log-store to scratch 2 itches: 1) I was bored while working at Meta/Facebook 2) I wanted to see if I could make Splunk.
Analyzing 9 years of HN side projects that reached $500/month
news.ycombinator.comAfter analyzing 9 years of HN side project posts, I found some counter-intuitive patterns about what makes projects profitable.
Chat with 19 years of HN
app.camelai.comYou can ask questions like: • “When does dang tend to comment during the day?” • “Which domains have gained the most submissions since 2015, year-over-year?” • “How has average comment length changed each January since 2007?” • “Top five users who link to arXiv papers the most.” It's behind a log-in
HN Wrapped 2025
hn-wrapped.kadoa.coman LLM reviews your year on HN
A Directory of 500 HN Side Projects
hnsideprojects.comI loved this recent "Show and Tell" thread about side projects posted on HN: https://news.ycombinator.com/item?id=42373343 It inspired me to build a mini directory that aggregates over 500 side projects posted to HN since 2017.