I, too have noticed and agree, and yet seemingly bona fide intelligent people are the ones using the two words interchangeably. It seems as though we are not the only ones who question the proper terminology. Yes, I sometimes have too much time on my hands. In a somewhat recent parent teacher conference with my grandson's teacher, the grammatically atrocious sentences that flowed from the teacher's mouth left me with a sorely bitten tongue. Grammar and syntax are just not a priority any more. We are swimming against the tide, I'm afraid.