The term Otaku actually means someone who has an unhealthy obsession with anything in Japan, you can be a computer otaku or a pornography otaku but in American culture, Otaku is a self imposed word to the Anime fandom while Weeboo is a name given to them by the culture. the word weebo did start from anime though, and grew from that.
seriously, I think the term is repugnant and idiotic. is a Weeboo any different then some guy who thinks the worlds gonna end if the Knicks don't win their game? is it any different then a person waiting outside on the street corner to get tickets to some rock group for five days? people have unhealthy obsessions with alot of things, ya can't help it so ya deal with it.
the worlds not gonna end if a person likes Japanese **** over American **** and I think people make a big deal out of this **** because they are even more pathetic then the "Weeboos" they insult. ****, we have a long way to go as it is to catch up to Japans obsession with America and it goes alot farther then "mixing in english words in with their Japanese". untill I see weeboos bleaching their skin to be more pale or getting eye surgury to look Japanese, I think we aren't as bad with it as of yet.