In at least some of these cases and possibly all, the content we're linking to is not immediately understandable without context, which I think doesn't befit the primary mission of FAQ and About, which is to serve brand-new users. What should be linked to is a clear explanation of more detail, backing up the point on the FAQ, not a precise source in the history of our community-building deliberations. A rough analogy to what we have now would be using Talmud as the source-text in a beginner's practical Halacha class.
So, I propose that we rewrite at least some of this material as dedicated posts on Meta, written with new users in mind, with all of the content in the "Question," tagged faq; and then link to these new, canonical FAQ posts. If there's other material that you feel should get this sort of treatment, please feel free to add it to this question.