Original sentence: Fanboy (sometimes spelt fanboi) is a term used to describe an individual who is devoted to a single fannish subject, or to a single point of view within that subject, often to the point where it is considered an obsession.Fanboys are noted for a very emotional attachment to their chosen subject.Fanboys remain loyal to their particular obsession.Stereotypical fanboys are attributed with a devotion to the creators and principles behind a work with which they are currently enthralled.They will readily engage in debates about their chosen subject
Edited sentence: Fanboy (sometimes spelt fanboi) is a pejorative term used to describe an individual who is utterly devoted to a single fannish subject, or to a single point of view within that subject, often to the point where it is considered an obsession.Fanboys  are also typically aggressive and hateful towards the opposing brand or competition of their obsession regardless of its merits or achievements.Fanboys are noted for a very emotional attachment to their chosen subject, often taking negative remarks about it as a personal attack.Fanboys are often hostile towards critical review of their chosen subject.Fanboys remain loyal to their particular obsession, disregarding any factors (often including logic) that differ from their point of view.For example, a fanboy may go out of his way to point out negative and often untrue statements about their obsession's rivals.It is often used in a derogatory manner by other, less obsessed fans.Stereotypical fanboys are attributed with a sycophantic devotion to the creators and principles behind a work with which they are currently enthralled.The stereotypical image of the fanboy is as an unkempt, socially awkward young man who may be perceived as a loud mouthed pseudo-intellectual.The term is often used in a derogatory manner by other less obsessed fans.They will readily engage in debates, but will fall back on emotional responses when challenged on facts