Sony removed Helldivers 2 from sale in countries where PSN is not available. For example whole CIS region.
(programming.dev)
Here are a few discord comments about the situation from the Helldivers 2 discord:
If I had to guess, I'm guessing it would add another layer that MOST griefers aren't willing to go through, but let's be honest... Look at the shit show here. No amount of ban control has to be worth getting your game delisted in 170 countries :P