Yesterday a Hacker News user posted a thread entitled: Ask HN: Successful one-person online businesses in 2021?
I happened to see the thread shortly after it was posted, dropped a comment about my startup, and was lucky enough to end up as the top voted comment.
The results (my daily traffic ending with the last two days):
Over the past two days that single comment has sent me 8,142 visitors and $891 in sales. For reference, being on the front of Product Hunt for a day sent me around 5k.
Lesson: HN is big. Really big.