That's pretty much Tether. You could probably bootstrap a POS coin by staking Tether. There would be a lot of details in getting it to eventually grow independent of Tether. I don't claim to know how that could happen. Especially since Tether is not a highly-regarded/trusted token in the community.
lol what this nonsense. tether's regarded as the safest bc their biz model is providing entities usdt for usd without offering interest on the cash.
now why would any entities want to deposit usd into a private bank and receive usdt without any yield on their cash? you think you understand tether so well maybe think about it for a few minutes