How to identify a troll on DU almost as fast as Brother Blue_Tires:

[Blue_Tires]

5. Part 1: The Basics -- The who, the what and the why

Troll spotting from the early days:

How can troll posts be recognised?
•No Imagination - Most are frighteningly obvious; sexist comments on nurses' groups, blasphemy on religious groups .. I kid you not.
•Pedantic in the Extreme - Many trolls' preparation is so thorough, that while they waste time, they appear so ludicrous from the start that they elicit sympathetic mail - the danger is that once the group takes sides, the damage is done.
•False Identity - Because they are cowards, trolls virtually never write over their own name, and often reveal their trolliness (and lack of imagination) in the chosen ID. As so many folk these days use false ID, this is not a strong indicator on its own!
•Crossposting - Any post that is crossposted to several groups should be viewed as suspicious, particularly if unrelated or of opposing perspective. Why would someone do that?
•Off-topic posting - Often genuine errors, but, if from an 'outsider' they deserve matter-of-fact response; if genuine, a brief apposite response is simply netiquette; if it's a troll post, you have denied it its reward.
•Repetition of a question or statement is either a troll - or a pedant; either way, treatment as a troll is effective.
•Missing The Point - Trolls rarely answer a direct question - they cannot, if asked to justify their twaddle - so they develop a fine line in missing the point.
•Thick or Sad - Trolls are usually sad, lonely folk, with few social skills; they rarely make what most people would consider intelligent conversation. However, they frequently have an obsession with their IQ and feel the need to tell everyone. This is so frequent, that it is diagnostic! Somewhere on the web there must be an Intelligence Test for Trolls - rigged to always say "above 150"

http://www.flayme.com/troll/
http://www.angelfire.com/space/usenet/

The 7 Worst Types Of Internet Trolls. Are You One Of Them?
http://memolition.com/2014/07/03/the-7-worst-types-of-internet-trolls-are-you-one-of-them/

13 Types Of Troll You’ll Meet On The Internet
http://www.buzzfeed.com/robinedds/types-of-troll-youll-meet-on-the-internet

TROLL | The Internet Troll, Troll Types and Cyber Attacks
https://drinternetsafety.com/troll/

Academic:
The ‘‘Nasty Effect:’’ Online Incivility and Risk Perceptions of Emerging Technologies
http://onlinelibrary.wiley.com/doi/10.1111/jcc4.12009/pdf

The Role of Anonymity in Deindividuated Behavior: A Comparison of Deindividuation Theory and the Social Identity Model of Deindividuation Effects
http://www.baylor.edu/content/services/document.php?id=77099

The Science of Why Comment Trolls Suck:
http://www.motherjones.com/environment/2013/01/you-idiot-course-trolls-comments-make-you-believe-science-less

The Online Disinhibition Effect
http://www.academia.edu/2386260/The_online_disinhibition_effect

This Story Stinks
http://www.nytimes.com/2013/03/03/opinion/sunday/this-story-stinks.html?_r=2&

Internet Trolls Really Are Horrible People
http://www.slate.com/articles/health_and_science/climate_desk/2014/02/internet_troll_personality_study_machiavellianism_narcissism_psychopathy.html