Well, yeah, I completely understand that it's very weird for people to be obsessed with your own culture and maybe annoying, especially if they act like they know so much, when they really don't and make assumptions. I still don't think it's right for people to try to use derogatory names towards them, but I get your point.
I think appreciation is great. It's fantastic that people like my culture enough to learn so much about it and embrace it like they do, but I have a problem with the people who go as for as making an Asian name for themselves (when I grew up getting ridiculed for having an Asian name) or just choosing the bits and pieces they like from my culture while leaving the other stuff I have to deal with behind. Those people I don't particularly care for.