I do this to save my spot on a page when I need to scroll up or down, but on Windows you can do one better: scroll anywhere by dragging the scroll bar at the edge of the window, then move the cursor away from the bar and your view will snap back to where you were before you started dragging.
It's the single Windows feature I miss the most on other platforms.
Thanks. That's the first time I've ever heard of a use-case that validates that functionality.
I still remember the rage I felt when I switched from the Amiga in 1996 to the PC and found that Windows did that; screwing up a large part of the usability of scrollbars (for me) by adding a (to me) completely incomprehensible requirement for ultra-precise mouse movement or else you get BAM! back to where you started.
Note: not trying to claim that you are in any way "wrong", of course, I'm just pointing out the opposite perspective since I found yours interesting.