Flame Wars are usually the product of
mutual disagreement in so-called
Chat Rooms. A
Troll will strike up a subject, most probably one about
religion/
politics/
sexual orientation/
OS preference and one that has been discussed about 3
Trillion times. Another
Troll or a
gullible person with answer, and soon enough the whole
chat room will be "
ablaze" with profanity and useless discussion.
Flame Wars can go on for minutes, hours, even for days in some cases.
See also: Why we shouldn't argue with each other