I don't consider this a particularly weighty issue, but it's interesting. When I first shared my thoughts about becoming a Catholic with my Episcopal priest, he (yes, Virginia, they're sometimes men) referred to the differences between "Anglican" and "Roman" traditions. He seemed to have an allergy against using the term "catholic" for Catholics.
This raises the question, "Did the Anglicans coin the term, 'Roman Catholic Church'", as our friend over at Nesciencent Nepenthene asks. Was the reason, perhaps, that Anglicans wished to continue thinking of themselves as "catholics," but just not of the "Roman" variety? Quite likely, I think. Even many Lutherans I know have referred to their tradition as a reform movement "within the church catholic," although they, in turn, seem to have a similar allergy about using the capital letter "C" when using the word "catholic."
I ran into a similar tendency among "liberal" revisionist Catholics who dissented from Church teaching and would say that they sought to become "more Catholic and less Roman." They didn't have the allergy about using the capital letter "C", but they meant by "Catholic" something other than fidelity to the See of Peter.
One reaction to the last tendency is to say, "Keep 'Rome' in 'Catholic'" the way some people say "Keep 'Christ' in 'Christmas," not realizing that the "X" in "Xmas" is the Greek letter symbolizing "Christ" and the first letter of the Greek word for "Christ", namely Χριστός. In that case, the faithful Catholic would see himself as responding to the revisioned by saying, "I'm not merely 'Catholic', by Gum, I'm 'ROMAN Catholic'!"
Having said that, however, I think it makes much more sense to let "Catholic" simply be "Catholic", from the Greek word καθολικισμός, meaning "universal", as in "Universal Church," not just the "Church of Rome" but of the whole world.