People who sell stuff on eBay, then call themselves \"pro-painters\" are like if I sold a painting in a flea market then called myself a professional art dealer.
I meaning of \"professional\" is taken waaaaay to liberally.
Personally, to me, a \"professional\" is a person who practices a \"profession\" and a person\'s profession is somehting that generates enough income that they use it to pay thier bills and/or treat it as reportable income for taxation purposes.
Anything else just makes you a \"hobbyist\".
Selling Crap On Ebay Does Not Make You a Professional. Ebay is just a Giant e-Flea Market.
farseelum- \"Paying for it\" is only ever been used to determine professionals in the Sporting area (professional football player, etc). For any other area, \"professional\" mean formal training, certification, and/or licensing.
Link to:
Wikipedia\'s Explanation
Just my 2 (well maybe several) cents.