Although Peercoin doesn’t have the limitation on the transaction output as Nu, there is of course a minimal amount of PPC that is required to make staking practical (i.e. to find a block in reasonable time), which depends on the difficulty. That’s not different to Bitcoin, where I also still can try to solomine with my CPU.
But I agree that the minimum of 10k shares kind of puts Nu in a separate position.
Right, that would make this more clear. I mean even though NuBits owner have no influence on the block generation in any way, they still play an important role in the healthiness of the network. Each NuBit owner can validate every transaction within blocks and the stake used in the block generation. Furthermore they can reject or accept and incoming transactions to the memory pool. So while NBT clients are not directly able to create a fork, they have a strong influence on the effect of a fork once the network split occurred.