The word "bully" has been thrown around a lot in the metaversal blogosphere lately. I think it's time we were a little more cautious in our terminology.
If you or somebody you know is really being bullied then do something about it. Get information and support resources at sites such as the Workplace Bullying Institute, CyberBullying.ca and Bullying.org.
If you're just using the word because it makes it seem that your encounters with people who might not like you or agree with you sound more important than they actually are..... well then I think you owe those who really do have to deal with bullying a sincere apology.