I haven’t heard of this concept before. I’m not an artist , but I don’t quite appreciate the vision behind it as I don’t think it can achieve anything. Taking into consideration that that callers are not traced, their names are not known , and there is no way to verify what they recite, I wouldn’t expect any production team to take on this project. However, the intriguing aspect is that many individuals called in and divulged secrets/confessions, some which are quite dark as this episode illustrated. I don’t know how will show proceed, but I’m in for any crime related podcast.