In doing some reading about spamming on forums, I came across these definitions of a troll and flaming.
Thought they might do some good here as THE DUMP is the appropriate place for this kind of activity.
Troll
Main article: Troll (Internet)
Forum trolls are users that repeatedly and deliberately breach the netiquette of an established online community, posting inflammatory, extraneous, or off-topic messages to bait or excite users into responding or to test the forum rules and policies, and with that the patience of the forum staff. Their provocative behavior may potentially start flame wars (see below) or other disturbances. Responding to a troll's provocations is commonly known as 'feeding the troll' and is generally discouraged, as it can encourage their disruptive behavior.
Flame wars
Main article: Flaming (Internet)
When a thread—or in some cases an entire forum—becomes unstable the result is usually uncontrolled spam in the form of one-line complaints, image macros or abuse of the report system. When the discussion becomes heated and sides do nothing more than complain and not accept each other's differences in point of view, the discussion degenerates into what is called a flame war. To flame someone means to go off-topic and attack the person rather than their opinion.
Edit: adding definition of sock puppet.
Sock puppet
Main article: Sockpuppet (Internet)
The term sock puppet refers to someone who is simultaneously registered under different pseudonyms on a particular message board or forum. The analogy of a sock puppet is of a puppeteer holding up both hands and supplying dialogue to both puppets simultaneously. A sock puppet will create multiple accounts over a period of time, using each user to debate or agree with each other on a forum. Sock puppets are usually found when an IP check is done on the accounts in forums.
Spam
Spam posts may contain anything from a single link, to dozens of links. Text content is minimal, usually innocuous and unrelated to the forum's topic, or in a very old thread that is revived by the spammer solely for the purpose of spamming links. Some text is included to prevent the post being caught by automated spam filters that prevent posts which consist solely of external links from being submitted. Full banner advertisements have also been reported