How to recognize a narcissist online

Realize who you are dealing with.  By their fruits you will know them.  Narcissists respond to buzz-terms and think in binaries.  They are impatient with the complexity in intellectual discourses.  They respond in an adrenalized manner to terms they may hear in a video or text, to which they immediately attach their own idiosyncratic meaning.  In doing so, they shed the original context (as it is either directly given or implied), and use the opportunity to make hostile accusations.  They are trouble-makers, who lack an education but may be unaware of it.