AIDS Denialists are ultimately a recruitment group with conspiracy fringes, they prey on those terrified of what will happen to them because of being infected with HIV because of it still being seen as so much of a death sentence compared to many who still live fufilling lives while being infected. They want to make you believe that there are ways to beat it outside modern medicine, that it really doesn't exist, or that "big pharma" is hiding the cure and that they know it.
To say a person is stupid because they fall for this is not right, they are a victim of fear and uncertainly and ultimately pay the price.