There are going to be people joining this community in the future that aren’t as familiar with Peercoin as we are. They’re going to end up asking the same question: “Why are NuShareholder dividends Paid in Peercoin?”
In the NuBits press kit, the question is answered in this way…
“We require an asset external to our system to distribute dividends. The purpose of creating NuBits is primarily to meet increased demand for NuBits in a way that prevents the rise of the NuBit price. If we distributed NuBits to shareholders instead of bringing them directly to market, there would be no way of knowing whether shareholders would hold them or sell them, or for how long they would hold them. It wouldn’t permit the network to tightly control the supply of available NuBits, which is necessary to maintain the pegged price.”
This doesn’t completely answer the question that was asked though. It only says why the dividends can’t be paid out in NuBits and why an asset external to the system is needed. It doesn’t explain why Peercoin itself was chosen to fulfill this role. Here is another quote from Jordan…
“I don’t have confidence in the decentralization or sustainability of proof-of-work assets such as Bitcoin, so I needed a well distributed proof of stake asset external to the Nu network. Peercoin is a popular and stable proof of stake asset with a strong community backing it.”
This quote better explains why Peercoin itself was chosen, but I think it can be improved. For example, mention that Peercoin was the original proof-of-stake coin and that Sunny King specifically designed it to fulfill a backbone currency role such as the way NuBits uses it. I think the answer to this question should use parts from each quote. Explain why an external asset is required and then explain why the asset chosen to fulfill this role was Peercoin.
If other people read this answer, they might realize the purpose behind Peercoin as a backbone currency and decide to include it as an asset in their own projects. Here is the link to the interview where Sunny explains his idea of Peercoin as a backbone currency in case you need to link to it…