3. Then now you are aware that frequency will warn you of gliders in the cloud you are blundering through in the open FIR, why not have it on your COM2? 130.400 in case you have forgotten.
I'm astounded that you think this will help. On 130.4 I'll pick up transmissions from every cloud flying glider within VHF range, possibly an area of 10,000 square miles. They'll report a position that is almost impossible to relate to the position of my own aircraft.
I have a simple choice in collision avoidance. I can turn left, or I can turn right. Cockpit display of traffic information can help me make that choice.