However, if people thought it was hype, or poor quality, or misleading, or simply wrong, then likely they flagged it until it was dead. You can try turning on "show dead" in your profile and see if you can find it.
Edit:
This one?
https://news.ycombinator.com/item?id=29850033
I've gone back over 24 hours and that's the only one I can find that is currently [dead] ... there are plenty of others about Web3 though.
So seriously, you'll need to be more specific.