I think it is. It keeps listeners engaged because what they love most is telling you that you might be wrong and looking ways for it. A listener should make up their own mind anyway and double check -- if what you say is 99% right better they take that away than be 100% right and not be heard at all. I also just respect people more that can be bold with their points rather than hiding behind some chicken shit nuance that always covers them if what they really meant to postulate was wrong.