Semi-related question: Do you still take the "original title" rule seriously, and if yes, what's a good way to refer articles that don't follow it? For example this popular post from yesterday doesn't have the original title or anything close to (or better than) it: https://news.ycombinator.com/item?id=21082757
For sure we take it seriously. The best way is to email hn@ycombinator.com if you see a problem.
In the case of that post, the submitter had emailed about it and we suggested that title as more informative than the original. Happy to hear feedback if we got that wrong!
"ImageNet for Code" is not a good title, I think, because I was mostly thinking of ImageNet of a dataset, not as an ongoing contest. Removing the "challenge" from the original title was not useful IMHO.