I’ll try to answer them over email and I may publish them here, with your approval.

Cleanup over sign-off As discussed in Sid's interview on iteration, waiting for approval can slow things down. We can prevent this with automation (e.g. tests of database migration performance) or clean-up after the fact (refactor a Pajamas if something was added that isn't coherent), but we try to ensure people don't need to wait for signoff.

Make two-way door decisions Most decisions are easy to reverse, have the directly responsible individual make them without approval. As Jeff Bezos describes only when you can't reverse them should there be a more thorough discussion.