@bluesign@flow_blockchain Originally we wanted to use software keys for concurrency vs. KMS ones. 0 weight reflects the reduced security. This is mainly to reduce the KMS cost.
I agree that it doesn't need to be 0 weight, can copy the full key with full weight.
@homuraboot@doodlifts Its randomized order per block to remove block producer MEV.
The goal is to land your transactions on the same block without running into nonce/seqNo issues, hence proposer keys.