Observation. Leo has finally embraced Podcasting 2.0 and has added podcast: tags to his twit shows. basically, paid (ad-free) members get chapters and don't get the funding tag.

Paid Members get:
podcast:episode
podcast:transcript
podcast:chapters
podcast:person

unpaid subscribers get
podcast:funding
podcast:episode
podcast:transcript
podcast:person

Please excuse me if someone already mentioned this.