Comment by c3534l

I know in the US you can call yourself a real estate agent, but not a Realtor unless you're part of the National Association of Realtors. This seems just to me: an organization shouldn't be allowed to steal a word from the English language like "engineer." But if you want to create your own brand and maintain its quality, you're more than welcome to invent a novel term and do that. But simply claiming by fiat that you have the legal right to sue someone for not following rules you've decided the rest of the world should follow despite having no moral or legal justification to do so? That's incredibly scummy.