As the center right handle allows duplicating clips (or events as cubasis seems to call them for some reason) quickly I use it quite often.
But there seem to be a few cases where it misbehaves. When other clips exist on the same track, sometimes it randomly deletes them, even with enough space and in random places. This can even happen when just slightly dragging the handle in the left direction (where nothing should happen).
(Here I dragged the copy-handle of the selected clip to the left, and the rightmost clip just vanished)