lol
Someone bought the token for $20 that you are buying with gold. So you are, in effect, paying Blizz $20 a month in lieu of $15. Blizz could care less if it comes from your pocketbook or someone else's pocketbook, but since you are paying the gold for the token, you are as culpable for the $20 going to Blizz as the person buying the token.