So they feel great, don't need medical treatment, but can still spread it to others... so great, maybe here we go with AIDS becoming as common as the flu (and mutating more, and killing poor people who can't afford the expensive therapies)
Is there a reason why you think that? It will probably still be sexually transmitted (so it can be avoided more easily than the flu), and it already has a much worse impact on poorer communities. Also, you are assuming that the treatment will remain expensive forever and that there won't be any preventative treatments available in the future.
Perhaps he is thinking of Gibsons's Bridge trilogy. There AIDS is cured by finding a variant of HIV which does not cause the disease. And at least in one scene it is implied that infection with the harmless variant is a usual prerequisite for casual sex.
