Hacker News new | past | comments | ask | show | jobs | submit login

In addition to familiarity as others have mentioned: when you scroll a site, it feels natural to "scroll away" the UI on the top. If you have UI on the bottom, and you want to hide it when scrolling, that doesn't feel as natural.



Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact

Search: