I don't think anyone was taking the piss. I mean - what is he doing advertising his goods on this Forum anyway? We don't even like chocolate/sweet salespeople pushing their wares on hear. And what on earth made him believe we had featured his products?
As for ethnic jokes - have you ever spent theevening with a group of East London Jews? They tell the best Jewish jokes ever. Racisim is about prejudice not about making fun of the way people speak.