Have you ever scrolled through a site, where your scroll input did not match how the site moved? This is called «scroll hijacking» and is often used to make sure, a certain section of a page is shown in its entirety.

Even when it’s done ok (like on Tumblr on large devices), it goes against everything the user has learned about scrolling.

Take this action

Keep it simple, just don’t mess with the native scroll behavior.