OCD

Obsessive Comment Disorder (noun) Having one thought or pursuing one activity to the absolute or nearly absolute exclusion of all others to make remarks or observations, as on an action, an event, a proceeding, or an opinion; especially, to write critical or expository notes on the works of an author while suffering a disturbance of the normal physical or mental health of; state of being deranged. (verb)To make a comment; remark, excessive in degree or nature intending to disturb the order of; to derange or disarrange; to throw into confusion (adj) To behave like a "Troll"