Nitpick: I think you update a UI. You would improve a UX. Try reading the words out in full. Also UX is a terribly misunderstood term from what I have seen - I would tend to clarify meaning using different words.
Nitpicking noted! New thing learnt. Thanks.
The HN user interface has been the same as long as I remember and there certainly are a few user experience related things that can be improved.Was just wondering why and how has HN resisted the temptation.