I honestly don't know what's the problem here and I'm speaking from a person coming from ASEAN which is the one of the most discriminated group of people in the Asian. You have to place the term into the context to determine whether it is racist or not. If you're describing an Asian product a ricer with the point that it is load, this is racist. Otherwise, ricing shouldn't be a problem here. But then again, if you find it offended despite not being an Asian, just use other terms that suit your taste. The "master" shouldn't and must not be used with "slave" in the same text to refer to anything that implies subjugation. But then again, how about the master who is highly skilled in their own field? What do we have to refer such people? And interestingly, not a lot of people have any feeling over the words "monkey". This term is generally used in a pejorative way to describe people from ASEAN, implying that we haven't evolved. Should we stop using the term "monkey"? A lot of these are depended on the context, if you have any little sense and basic on linguistic. In the end, I'll be still using ricing to describe my extensive customisation and you will be using other terms. If your proposed term becomes the dominant term, then for the sake of making people easier to understand what I'm saying, I will use that term too.