Hello! I'd like to write about my opinion about the video about otaku words.
"Moe" I thought the film was explaining pretty good about this word. To tell the truth, I can't really imagine better answer than "Pink warm fuzzy feeling"lol If I explain this word to foreign people, I think I'll say that it's nearly equal to the word "like".
"Cosplay" is a liking for some kind of people that likes to wear a same uniform as the character of animation or comics.
"Tundere" is a kind of personality that act like perversely to the people who they like. This kind of people can't be obediently and say something that they don't really think so. I don't think tundere say "Die! Otaku, die!".
"Burikko" is personality that act like they are really cute. This word usually used for girl. I didn't know that this word means that to make oneself up to look younger. Is that meaning right? I don't know.
Well, I don't know the detail about the words, so maybe it is wrong. But this is my opinion of the film.