Blue cheese is actually a superfood with all kinds of good things in it, and if you eat it a few times you can acquire a taste for it. Acquiring a taste for something usually means that you eat it often enough that your body recognizes the nutrients that it gets from that flavor, and so you learn to appreciate that flavor, even if you hated it before.
Molds that simply grow on cheeses are of a different kind, and not so good for you, and not nearly so delicious.
Note: My brother-in-law is a cheese maker and could probably give me a very in-depth explanation of all of this. Maybe I'll call him sometime soon.