AIP: BOLD - permissionless validation for Arbitrum

Voting FOR this proposal.

Adding additional security and censorship resistant capabilities with withdraws is a no-brainer, especially as rollups start to differentiate themselves between fully decentralized and more app-chain like.

Opening to additional validators is also a good move and will hopefully bring more interest into this necessary role as well as new actors to the community.

While going with Infura is fine, we would like to see some additional information on how success on this program will be measured. Is it number of new validators added? Additional information or KPIs. If these can be set out at the start it will make it easier to track the impact of the pgoram and support further expansions of it in the future as needed.