they must not, they have one of the biggest followings in the world....they are also one of the most marketable bands in the industry
you are right by saying there one of the most marketable bands in the world but that doesn't mean they don't suck, HIM fans will buy anything with a heartagram plastered on the side how else can you explain those terrible b-side albums doing well?
i can also recall a point when ville valo said he wanted a new logo to replace the heartagram, that idea sharply fell through
btw i could write HIM songs easily, all you do is take a load of words from love songs like heaven, angel, heart, love etc. and mix them with aload of angry words like murder, knife, blood. And there you have every HIM song ever written