Big difference between having a face-to-face conversation with someone and calling them names to their face.
That I would agree with, but as someone who has had try to help people who are truly bullied severely I would say that your claim of bullying by being called one name on a message board by someone who is anonymous would be rejected pretty quickly. As an earlier post stated it would fall under the 'not nice' category.
Additionally, you could block the offender so it would not happen again. Don't insult people who actually do suffer from this on a daily basis by claiming you are bullied in such an insignificant way.