There is a new Idena Chronicle with AMA recap:
https://medium.com/@idena.network/idena-chronicles-7629afabb6bbIn which we can find a new proposal:
IIP-4 Quadratic staking:
"Idena core team has been receiving many requests from the community to add percentage yield to the identity stake and allow stake replenishment. Staking can make the iDNA coin more attractive for investors and reduce inflation by locking coins in stakes.
However, the traditional (linear) staking model leads to inequality because large coin holders can extract the major part of the profits from staking. With Proof-of-Personhood in mind, we can offer quadratic staking reward schemes that are free of capital bias. We invite the community to consider this quadratic staking proposal and discuss its advantages:
Quadratic staking can make the iDNA coin more attractive for investors and reduce inflation by locking coins in stakes. This can lead to faster network growth.
Quadratic staking can make an older identity more valuable and would incentivize people to not terminate their identities.
Quadratic staking can improve security of the protocol because larger stakes increase the value of each identity. In other words, quadratic staking will lead to the growth of the capitalization of many identities resulting in higher security of the network.
Identity’s stake is a security measure that ensures that the private key of a valid identity cannot be purchased without the risk of losing the stake and identity status. We see benefits in being able to replenish the identity stake and get rewarded for that but only if it leads to a balanced rise in stakes for a large number of identities. We consider the staking to be undesirable when it leads to the domination of a few large coin holders. We propose quadratic staking that discriminates against large coin holders and encourages smaller players to increase their stakes."
https://github.com/idena-network/idena-docs/discussions/69Same voting power but faster mining for indentities with bigger stake? Am I geting it right?
"Quadratic staking can make an older identity more valuable and would incentivize people to not terminate their identities."
If you allow "stake replenishment" than it does not make older identity more valuable since you can add stake to 1 epoch old account and make it mine faster than 50 epoch old account?