One of my coworkers was born and raised in the Northern part of India. He said that in the area where he is from “Chink” is used to describe people of Eastern Asian descent. When he first moved out here, he described someone as “Chinky looking” and his friends were horrified. We explained why it was offensive and he understood but said it was hard for him to remember to not say it because it was what was used when he was growing up.
Although Jap can be offensive, I don’t think that it approaches the level of “Oriental,” at least for individuals in their teens and twenties in this heavily Asian area. I think Jap is mainly offensive when used to refer to people rather than objects. And in the later case, it really depends on how it is said and who says it. One of my half-Japanese friends and I were discussing chopsticks in a mixed crowd and he said “I prefer jap chopsticks.” no one objected to that usage, however, if someone had said “Don’t buy that jap crap” then I would be highly offended.
I have used jap on occasion when comparing Japanese foods/media/music with other types in casual conversations with close friends. While you can say “jrock,” “jdrama,” and “jpop,” most things don’t have shortened names (and some of my Japanese friends hate the terms like “jrock” anyway) and “j” just seems too short, so I use “jap.” If someone told me they found it offensive, then I would apologize and never use it around them ever again. I would never, ever say “She’s a jap” or refer to the group of people as “japs” nor would I use the term “jap” around anyone in a professional situation or around a person outside of my age range.
It’s very interesting to see what is considered offensive on this board and what isn’t. I’ve noticed that there is a lot of variation dependent on age range and geographical location. For example, the term “rice rocket” is widely used here by Asians, including those in the car racing scene. I had never considered the term to be racist because I never heard it said by a white person - only Asians. Same with the term “tranny,” I had heard so many transsexuals use it casually that I wasn’t aware how offensive it was to some individuals.