Ama
Oh puhleease! It's not a "ploy" to make people think the AMA is a Federal authority that licenses people to fly model airplanes. It's IGNORANCE, plain and simple. This person obviously heard someone call it a license at one time, it stuck in his head, so now he calls it a license.
People use incorrect terms for things all the time. How many times have you heard people refer to GLOW planes as "gas powered?" There are a few big misnomers in everyday society, but darned if I can think of even one right now.
You still hold an AMA membership because you want to participate in AMA events. The primary reason for requiring AMA membership to participate in AMA events is the insurance, of course, and it's pretty simple to see why. How long would you wait in line at the pilot's sign-in table while they checked out each participant's homeowner's policy to make sure it was paid up and covered R/C flying? That's the alternative.