Block scoring for mev-boost relays

Hey, Flashbots community!

Eugene M. here from Lido protocol devteam.

We definitely support the block scoring effort since it’s crucial to maintain proper monitoring and assessments.

Block-level scoring looks prominent, however, I can confirm that our architecture presumes huge daily withdrawal of accrued fees from the feeRecipient address (which is the same Vault SC for all Node Operators participating in the Lido protocol). As far as I understand, that block would have been considered with negative score and proposer would have to fallback to mempool if had treated without additional mitigations.