Prediction: Nerf Dust Refund Change

I don't know if this has been posted already but I have a feeling that Blizzard is going to change the way that they refund dust for nerfed cards from now on. Here's the reason why...

With the new changes to packs not giving duplicates of any rarity until all cards are acquired, this will allow people to gather a huge amount of dust by dusting their rares and commons that got nerfed, then opening a pack to get those cards again, dust them again and repeat. This nets a guaranteed minimum of 190 dust per pack if a rare and common got nerfed (100 from rare, 40 from each nerfed common, and 5 from the non-nerfed commons) but possibly more. 

I'm guessing they'll put a fix forward for this and my best guess is that they'll limit the number of cards you can DE for full dust value to the number that you can put into a deck (1 legendary, 2 of each other rarity). I know that this could screw over people who mass collect copies of cards in anticipation of nerfing or never mass disenchant (I'm in this group) as you won't benefit from dusting all the extra copies, but I think it's a solution that's fair and consistent with their intention for providing dust refunds. The dust refunds are to benefit people who may have crafted the cards to use them in a deck or didn't DE them for dust to use on other decks as they were good at the time. Nobody would intentionally keep more copies than they could use in a deck if there wasn't a chance for extra dust on them upon nerfing. Also, they definitely have the coding to check this already as HoF only gives dust for the number of copies that could be used, similar to this solution.

So whether Blizz does this before or after the first round of nerfs and subsequent dust abuse for Outland, I feel fairly confident that they will implement a solution of sorts. I personally wouldn't mind this as I'm sitting on 13.5k worth of undusted cards that I'm holding onto in case of nerfs and it would stop my hoarding mentality from kicking in knowing that there's no consequence for dusting the extras.

What do others think? Has this been mentioned by the Hearthstone team already?

Once you open a card, it is marked as "owned" forever. So you won't be guaranteed to get the nerfed cards from your packs. 

Interesting. Is that a new change? I received copies of cards that I had previously dusted immediately upon opening my first few classic packs since the change

its a new change, and it is live from the march 26 patch, so thats why you've got your missing cards back.

Thanks for the clarification!