They suck less than what this page does. I couldn&#x27;t tell you if all pages that do scrolling themselves are annoying, because I probably wouldn&#x27;t notice a good example, but I can tell you that many of the pages that do do because they do something to scrolling that&#x27;s not as intended. If your custom scrolling feels noticeably different or breaks a feature, it&#x27;s broken. And honestly, I doubt many developers are able to build a reliable, cross-browser, non-broken implementation.