Steph Pomboy's Idea

Anyone else following Steph Pomboy at MacroMavens and her idea concerning the finding of support for US sovereign debt during a slower period of domestic economic activity?

Pomboy suggests freeing the interest earned on Treasury debt securities from federal tax obligations much the way municipal debt works. Would this unleash enough increased demand to actually lower rates without a significant reliance upon central bankers as the buyers of last resort? Pomboy thinks maybe it does and I certainly think some work should be done in finding out. According to Pomboy, a one percentage point drop in Treasury yields across the spectrum might cost the Treasury $100B in tax revenue but save the Treasury approximately $350B in debt service costs. Would it work? I don't see any other bright ideas. It might buy some time as "we" try to figure out how to move forward without the monetization or at least delay that monetization of the debt that seems unavoidable at this point.