Do you record users who modify titles which you later replace?

Many outlets A/B test headlines, or otherwise change them, so it can be hard to know what the article's headline was at submission compared to the eventual headline.

That, and the title of the article can change, and the metadata embedded in the page that encodes the title doesn't get changed with it.

Maybe 2 or 3 hours of code and testing. Not hard at all.

Save the headline at submission, then a few more times more later. Let us see all the headlines when we hover the title.

I meant to punish users who alter the titles

Sometimes the title does not fit in the HN submission box.

Sorry for the late reply.

Title being shortened, changed drastically, etc . I think the HN admins could simply note the reason.

For example if a user changed a title to something bias, even if that's the mods opinion, multiple times perhaps something can be done.

Not really.

We sometimes mark submissions (internally) as having been editorialized, but we don't do anything with the data.