Missiles, especially pack hounds, can make most of hulltank users, like almost of all FAS users, to think twice before they would want interdict someone's equiped with or even refuse to fight with it, at some cases. Just 2-3 missiles or hounds salvos from single rack are enough, to kill most of modules on utility slots, like chaff or boosters, if such are being directly hit with. Also they can force well-skilled cmdrs to take evasive actions against them, or atleast change thier way of approach, wich can create opening to fire back or get better position. Lastly, they can kill thrusters and weapons really well, if lots of missiles does reach opponent hull, even if such are not being sub-taget by missile user.
Because of reasons above, missiles are known "hard-counter" to most of hull tank bulids if in right hands. Only counter for it are TLB as this can break lock-on or silent running if there is no emmisive along. Of course some of pvp crowd will see them as "poison" or "cancer" but lets get real, they just hate anything that can posse a threat to their bulids of choice. [yesnod]
Against well-shielded ships, like big ones or prisma HD stack FDL's, missiles are waste of hardpoint, as missiles are only good to killing certain exposed modules or weapons, rather being source of DPS.