Thanks! You're right, I am already setting beneficiaries, and I recently increased it from 5% to 10% for the original author. (with @steempeak and @torrey.blog still getting 5% from every post for their infrastructure that I make use of.)

I agree that it should be customary to set a beneficiary when we include on-chain posts from others. If it catches on, I think it could be a great way to encourage collaboration through the creation of derivative works.