I've noticed a usability issue when reading long comment threads on Reddit Web.
If I'm deep inside a comment chain and decide to skip the rest of the discussion, I can click the parent comment line to collapse the entire thread. The problem is that Reddit keeps my current scroll position after collapsing the thread.
Since I've already scrolled far down into the comments, collapsing the thread often leaves me somewhere in the middle of the page. I then have to manually scroll around to find the next top-level comment thread. This makes the thread-collapsing feature less useful, especially in large discussions.
My idea is that when a thread is collapsed, Reddit should automatically scroll back to the collapsed comment so that the next thread is immediately visible. This would make it much easier to navigate through long comment sections.
Alternatively, Reddit could bring the iOS app's downward chevron button to the web app. On iOS, this button allows users to skip the current thread and jump directly to the next one. It solves the same problem and makes browsing long discussions much more efficient.