Sometimes HN admins revive quality posts that didn't get much traction when they were first posted. When this happens, the timestamps are updated to make the post look new.
I can't say for sure whether this is what happened here, but it is a possible explanation.
Sometimes HN admins revive quality posts that didn't get much traction when they were first posted. When this happens, the timestamps are updated to make the post look new.
I can't say for sure whether this is what happened here, but it is a possible explanation.