SIMD-0123 proposes distributing block rewards directly to stakers within the Solana protocol. The proposal details are available in the SIMD repository and the Solana governance forum.
Pass Threshold
For SIMD-0123 to pass, at least 66.66% of Yes + No votes must be in favor ("Yes").
This means that abstentions do not affect the threshold directly, but a high number of "No" votes can prevent the proposal from passing.