I wish HN could just take the url and then fetch the title of the page.
That would save quite a hassle, especially on mobile.
In this case, the missing '99' isn't a typo, it's deliberate by HN to eliminate clickbaity headlines like '7 Ways To Be A Better Programmer.'
That would be prone to title injection by malicious pages. ;)
More seriously, HN should instead display an instruction after submitting, informing that the title was changed and that the submitter should check the change and edit if necessary. The issue is that most submitters either don’t seem to notice that the title changed or don’t hit on the idea that they can edit it after the fact.