The thing is, the high standards on LW that Yvain refers to are precisely what makes LW content valuable.

Yes, I agree. That's why I think "more content" is the wrong yardstick. I want "more high-quality content" which you don't get by relaxing standards.

wanting to escape requirements such as airtight reasoning means you want to write stuff that doesn't have airtight reasoning

Correct, but that's fine. There is a lot of high-quality and valuable stuff that is not airtight-reasoned.