I am voting FOR this proposal in Tally. I believe an upgrade such as this one would put Arbitrum a step closer in achieving its roadmap in becoming a Stage 2 rollup. This will increase decentralization and would set Arbitrum apart from other Layer2 solutions that are still not close to this achievement.
After putting in some time to read this proposal and the information on OffchainLabs’ github this upgrade will keep the protocol secure while increasing inclusivity. About the risks outlined in the proposal, I believe that contract bugs and implementation risks are just standard technical hurdles and the fact that BOLD has been running in testnet for a while helps mitigate these problems. The risk of remaining partially centralized in an ecosystem that values decentralization are far greater.
I agree with krst’s point that technical proposals of this scope should ideally include a more detailed walkthrough from the proposers. I’m nonetheless confident in backing BOLD given the extensive testing period and the thorough documentation provided by the team.
Regarding potential block time changes in Ethereum such as the EIP-7782, I’m far from an expert in the matter but a possible solution would be to make the dispute window parameters such as to be upgradeable values instead of constants. This would allow the protocol to adapt to future Ethereum upgrades of this nature.