Selected answers from the Dumb SEO Questions Facebook & G+ community.
Jim Munro: G`day Ross. Forgive me, I had no idea what Google Authority Stacking was but I looked around and it seems to me that it is one of those bullshit terms hawked around by shysters wanting to sell you links. Anything and everything works until it works, it`s always been that way, but if your interests are long-term, you would probably be better off devoting your attention to building a better website to service the needs of your readership. I`m sure, "Google Authority Stacking" works well for the shysters but my recommendation would be to spend your money elsewhere.
Michael Martinez: "Google Authority Stacking" is a link scheme (thus it violates Google`s guidelines) that leverages Google properties for an IMAGINARY boost in "authority".
If you`re lucky Google just ignores whatever you do.
Becky Westmoreland: I`ve been doing SEO since 2007 - that`s a new term to me. And that means you probably shouldn`t do it because it`s not real.