To me, it should come down to the 'offended party'. I'm an alumnus of Central Michigan University. I am a very proud Chippewa. The school asked some of the local tribes (though some were Ojibwe) about the use of their namesake. The native Americans were proud that CMU used the name Chippewa and had no problem with it being used. Of course we don't use a dancing Indian to plant a spear at the 50, do the tomahawk chop, or use insensitive logos/icons.