That's a great idea if the injected ads are exactly the same length and always get put in the same place. If you have a 30 second ad in one download and 40s in another, 10 seconds of legitimate podcast audio gets interpreted as an advertisement.
The site lets you download the app, run the app, log in to GitHub, and _THEN_ asks you for a beta invite code. There's almost no info about it on it's homepage, so why post the link at all?