[tim333]

Maybe https://news.ycombinator.com/item?id=14605 ?

[adlpz]

Here's the one, I believe. Linked to parent for context:

https://news.ycombinator.com/item?id=14754

PS: They're basically the same, really, just adding another candidate to yours.

[tim333]

Wonder if HN still has all 20 million comments in a hash table?