Perhaps I wasn't being very fair after just a quick read through so here goes with my initial thoughts on that one aspect.
Transponder codes are limited by physics.
Already we find that during busy spells we run out of codes so allocating them to GA needs to be planned carefully and on a European Basis...this is not a National Issue.
In the old days I could filter out code 7000 leaving my airways traffic quite visable.
New rules mean that I'm not allowed to and on fine weekends we frequently find all those 7000 GA squawks under the Daventry Arrea obscuring airways traffic and often causing garbling.
The use of TCAS means that GA traffic without Mode C may appear as a conflict to airways traffic well above. Nonetheless , the Commercial Pilot is spooked and we find ourselves entering a narrative on what may be causing the spurious conflict.
GA traffic with wrongly reading mode C can cause havoc as we have to treat the traffic as a potential risk until we can formally identify it.
As a side issue please squawk Lost or call for help if you're uncertain of your position. We really appreciate it if you do your best to get out a problem quickly.
I don't know of any of my colleagues that would take any action against you if you made a reasonable effort to avoid infringeing Controlled Airspace. None of us is perfect
