For the UK, I really don't know why you're listening out guys. If I'm in a little plane - which I hope to be this weekend - I don't calculate on you entering the scene so don't listen on my behalf.
I want someone to know exactly where I am an d to be able to guide me to a field in the event of a problem. Most likely I've gone IMC without radio aids or with some radio aid problem.
Or my engine just went bang and I'm over the Peak district. My needs are not information and support but an ambulance and a fire engine.