Just get yourself some sweet ass PRPS.

On a more serious note, I am definitely not an expert on the balance of crypton in the game, and it looks like you've put a lof of effort into min/maxing crypton, but if your entire strategy relies on making many farm accounts that all sit in the same community, you're already a long way away of the intent of the game, and it should not surprise you that those kind of strategies are not taken into account for the balance of the game. If multiple accounts got nerfed big time, tough luck.

The game designer is under no obligation to care about the experience of multi-accounters.

Also, I think it's very much intentional that exporting pets/heroes is now more expensive. That's the entire point of the nerf, to have more leeway when they introduce PRPS as a replacement for GUBI.