Ron Paul put within his own words a sense of his own opinion surrounding Bitcoin. He basically stated he doesn't believe he would use it himself for reasons not completely known. The difference between him and many other politicians however, is while he would not use it himself (for whatever reasons), he sees the technological value and idea behind it as a great thing. He sees it as innovation to promote competition. You don't necessarily have to fully agree with something or use something to back it and support it.