Er no, not entirely.
I love Japanese people, their counrty, history, art and culture. Yes I also love the anime and manga. However, I do shower, and I don't spend my days buying bunches of "plastic craps". I do have action figures though, lol.
That site is rediculous. Its just stereotyping.
Theres nothing wrong with enjoying another culture more than your own. Its all personal opinion. They love America for the most part, and try to be like Americans. Not all of course.