Think about if you're doing this vertical hand gesture on a data conferencing, it'll come out with this gigantic hand that'll be scary.
想象一下，如果你在数据会议上做这个垂直的手势，视频中的手将是巨大的，这太可怕了。
英语百科
Data conferencing
Data conferencing refers to a communication session among two or more participants sharing computer data in real time. Interaction and presentation devices such as a screen, keyboard, mouse, camera, etc. can be shared or be able to control each other computer. It is used to distinguish from video conferencing and audio conferencing.