Giving importance to stating ethnicity based on categories that only apply on US citizens does not seem to go with the stated spirit of the Reiki Cafe, I qoute:
"This is a place for an open sharing of knowledge and universal acceptance of others."
In a universal place, ethnicity shouldn't matter. Of course, anyone who feels it is important to let others know the color of their skin should be free to do so. But by having the question in the user profile form enodorses the usage of placing people into categories that have more to do with race than ethniicty, ie. skin color rather than culture.
Personnally I believe culture and common values affects each individual more than the genes that define the color of the skin. And
Dreamlight