I just finished messing with a patch on a Jurassic Park mobile gacha game and really all this particular patch does is intercept the buying mechanic and make it all free. While I'm sure Blizzard will be more difficult than random mobile game, hackers always find a way.

I've not even necessarily been pro-piracy as an adult, but one key point to feeling like I should buy my entertainment legit is that it's offered at a fair cost. If this were a one time purchase, I'd say just buy the damn game. I have no shame at cheating these predatory slot machine games.