Pog cast advertising is hard to measure, but you can get a pretty good sense. Companies like mail chimp and square space are probably pretty intelligent about how they allocate ther adspend. There's just a broader sort of point i would make. I've made this point repeatedly on the podcast, that a really fast way to do really stupid analysis is to presume that people are stupid. The end result may be that they're stupid, and i'm sure there are stupid advertisers out there.