Things like size of artboard? If the artboard is too small does it get clipped or pasted above artboard. Where does it past (x,y)? Where does it paste in terms of layer order? How do you access this command (dropdown menu, keyboard shortcut, etc.) Those are just a few I can think of. I mean it can all be solved for but I haven't seen this type of functionality as default in any other app. :)
The plugin that I posted on my first message allows to do it but I was surprised there is no way to do it only with Sketch. Would be logical for the artboards of the same size. If you select all youe artboards and you past an element, it will past it only on the last artboard you selected.
“I haven't seen this type of functionality as default in any other app” This is a default and useful functionality in Adobe lllustrator as well as Indesing. Same artboard size – it pastes to the same place logically on top of the previous layers. If the artboard sizes differ then it produces unexpected results of course.