Originally Posted by
woptb
But, if they did report we’d have a better understanding of the issue.
The main issue is that some pilots don't look out, or at least don't "see and be seen".
The fact that most light aircraft are flown from the left seat and the requirement is to give way to the right - cross cockpit visibility isn't so good by the design of some types. That doesn't help.
If all pilots used their transponder on Mode C it would help prevent many potential AIRPROX situations from developing.