Otaku is extremely negative in meaning as it is used to refer to someone who stays at home all the time and doesn't have a life (no social life, no love life, etc) Usually an otaku person has nothing better to do with their life so they pass the time by watching anime, playing videogames, surfing the internet (otaku is also used to refer to a nerd/hacker/programmer).
Wow! Didn’t know that. Guess I am too old for all these new toys.
Otaku is originally a Japanese phenomenon . Some months back young Japanese man wanted to marry an anime character but just on paper . This orean took it much further with the pillow case figure . Carzy world .