Myth: You can totally live a normal happy, healthy life with the HIV treatments available. This has led to sharing "the gift" in the gay commmunity, and generally an arrogance with condoms.
Truth: Whilst there is no real reason why (in the Western world) you should die young if you take the medication correctly, it is no cup of tea. The side effects are horrible (think chemo) and resistance is very likely. It is not pleasent and not something you would want. You can developy neurological disorders, osteoporosis, cancers, heart disease, kidney failure etc. Add on this to all of the disease you would get through having no immune system: pneumonia, TB, Toxoplasmosis, Epstein-Barr virus, Kaposi's sarcoma-associated herpesvirus, HPV, thrush etc....
So anyone that says it shouldn't be treated, in my opinion, needs infecting.