The usability of Windows 8
The UI is littered withswipe ambiguity, where similar (or identical) gestures have different outcomes depending on subtle details in how they’re activated or executed. For example, start swiping from the right to the left and you will either scroll the screen horizontally or reveal the charm bar, depending on exactly where your finger first touched the screen. This was very confusing to the users in our study.
Obviously, I wholeheartedly agree.