The 1-2 punch of Matt Wolfe and Joe Fier run a popular business podcast called "Hustle & Flowchart" that they've been building for years.At first, they monetized this audience with a premium physical newsletter that was filled with their best, bespoke content and costs $97 per month. But, they quickly found that while it had a passionate customer base, they were putting the bulk of their time into a newsletter that just wasn't able to get past its growth celiing.So they shut it down and t...