Good decision not to do this. Your thinking about not being a "registered business" in probaby off though. Just because you are not "registered" you are performing it for profit which whether you admit it or not is business. Also do yourself a favor and run your business like a business, get the proper business licenses pay taxes & etc. You will be doing yourself a favor in the long run. For what it's worth I report people in my area. Not to be mean but because it affects the entire industry.