Flame

Flame 

Refers to inflammatory (rude, cruel, mean, hateful, unjust) remarks made about an author or their work. Not all criticism is automatically a flame, but it can be subjective to the author's sensitivity, so care should be taken to distinguish constructive criticism if sending feedback. Flaming is widely considered very bad netiquette, not just in the world of fandom, and will often get you banned from communities if you insist on doing it.