Having a way to ping things or draw on screen is super useful even if everyone uses their own environment. No more "no, not this line, the 4-th one from top, well now its on bottom, wait don't scroll".
Ha, ya. Tuple's are perfect as it gives you the "draw quick attention to this spot" and then the pen tool auto-disappears with a setting to make it stay forever with a quick shortcut to erase everything. I actually almost exclusively use the pen now, though I use to make a lot of use of the ping.