Perhaps HN could implement this. I'm not sure we can ever expect submitters to test a site's scrolling functionality out of all the browsers out there or even say 3 of them. This site for example is working just fine for me in Chrome.
There is nothing for HN to implement. The problem is not that scrolling needs to be tested and fixed in multiple browsers. The problem is that this site uses a JS plugin to modify the browser's default scrolling behaviour, and this plugin provides a poor experience for some users (myself included).
