https://news.ycombinator.com/front?day=2009-08-19
https://news.ycombinator.com/front?day=2009-08-20
https://web.archive.org/web/20090820010834/http://news.ycomb...
What people may not remember is that, sometime between https://news.ycombinator.com/item?id=775727 and https://news.ycombinator.com/item?id=776473, we got the second HN Erlang avalanche. I doubt anyone remembers who triggered that one. I tried to find a screenshot of the frontpage at peak Erlang but the Wayback machine wasn't crawling HN so often back then. (It didn't get it the first time, either, but https://news.ycombinator.com/front?day=2009-03-11 is an approximation.)
Later follow-ups:
https://hn.algolia.com/?query=whytheluckystiff%20points%3E30...