[AlbertoGP]

> Then apparently the editors renamed it to the (less interesting/more convoluted) title of the page it linked to.

It is part of the submission guidelines:

> Otherwise please use the original title, unless it is misleading or linkbait; don't editorialize.

https://news.ycombinator.com/newsguidelines.html

[_jzlw]

It seems like they ought to have at least clarified the context, though. "Large integer precision error in Bash command output rendering" doesn't mean anything to anyone. If anything, it sounds like a bug in Bash.

[tstrimple]

It's also not a real rule. If you use the original title, they will regularly "fix" "misleading" or "clickbait" titles too. All of which is completely subjective at the whim of the mod team with zero transparency.