I had a spotter here yesterday, a "Foxbat" light aircraft landed at my strip, they only said hello and were off in a bout five minutes again.
Just as they were airborne a "spotter" arrived and wanted to know all about this aircraft etc.
I was a bit reluctant at first in case he was out to report them for something, but he was just a "spotter"
So I told him where the aircraft was based (about 10 miles away)and off he went "wheels spinning" to se if he could get there before they landed.
I dont really understand them but I suppose its all harmless fun.