I recently took off from RKSI to KIAD, and someone copied my whole FPL for the entire flight. We are about to have a midair collision as all our altitudes are the exact same with the same fixes.
The user appears to be unresponsive. What is the best course of action?
On a serious note though, when Iβm about to encounter one of these situations, I disengage auto pilot, turn right or left and descend or climb immediately to avoid crashing or in this case colliding with them.
I hope this helps for next time, or if it is about to happen!