ORIGINAL: KidEpoxy
The issue they have now is people ''pretending'' to be models airplanes while doing commercial activities
could be they are talking about the business sponsored/compensated 'product sales demo' pilots pretending they are still Hobby
I seriously doubt it. They are more concerned with the law enforcement agencies and other folks like commercial AP who were operating smaller "model" sized UAS and said, "Hey, we're just like models". One clear case happened out here in LA County with the Sheriff's department. They got some news coverage and shortly after that the FAA shut them down telling them that the were not, in fact, models and could not operate under AC 91-57.
This quote from the March 2011 Notice makes it pretty clear they are not talking about "sponsored" pilots:
NOTE: The FAA recognizes that people and companies other than modelers might be flying UAS with the mistaken understanding they are legally operating under the authority of AC 91–57. AC 91–57 only applies to modelers and specifically excludes its use by persons or companies for business purposes.
For example: Flying a RC helicopter with a camera for fun is fine. Flying an RC helicopter in order to be paid by someone for taking photos is not.