Robin does share data. I recall Eclectic Gamers Podcast Episode 60 from April of last year referencing some of that data. (Dennis, Tony, and guest Ryan)
https://eclecticgamerspodcast.wordpress.com/2018/04/22/episode-60-ryan-raps-pinball/
"After the news, a collection segment begins, where Ryan gives his thoughts on pin collecting from a player’s standpoint. Two data segments follow this, both involving Pinside data. The first examines game ratings versus category of ownership. The second explores the ratio of wishlist to ownership for the top 200 solid-state pins."
That is at the 1hr3min mark.