Who do you really think you are that you have authority to tell someone what not to call you, when clearly the have the freedom to do so and you have no power to stop it?
If you're so pro, how are you trapped spending so much time achieving things in merely one game? There are thousands of games that you have to achieve things in. This isn't a career sport like football (american) or football (everything else.) Which, by the way, sports will never accomplish anything that actually matters; i.e. colonize mars, save Earth from people, save people from people. Sports will never do anything but consume time and resources like all wasteful forms of entertainment.
Are you sure you want to be known as a professional in something so meaningless?