Kusama has two participatory reward mechanisms.
It’s native rate of participatory rewards is determined by the staking rate of the protocol, capping out at 10% when 50% of the protocol’s tokens are staked.
Additionally, 1% of DOTs (native to Polkadot) will be distributed as rewards to Kusama participants. The reward distribution mechanism has not yet been determined, as the Polkadot protocol is still under development.
We maximize participatory reward earnings by enabling customers to easily scale their validator count and distribute stake to maximize presence in the active validator set.