flaming
On the Internet, flaming is giving someone a verbal lashing in public. Often this is on a Usenet newsgroup but it could be on a Web forum or perhaps even as e-mail with copies to a distribution list. Unless in response to some rather obvious flamebait, flaming is poor netiquette. Certain issues tend to provoke emphatically stated responses, but flaming is often directed at a self-appointed expert rather than at the issues or information itself and is sometimes directed at unwitting but opinionated newbies who appear in a newsgroup.