I remember buying the playtest Edge of the Empire RPGs of Star Wars and really enjoyed it.
There is also the issue of people not valuing things they get for free. They'll get hundreds of downloads with a lower % of feedback, but if people buy the playtest with their own money you can bet...
Health issues could be: I get a headache when dealing with some of the administrative work or something more serious. Hopefully is nothing too serious and after some rest we will see him popping elsewhere.
Sadly I never received my books for the original Scarred Lands KS, even after contacting them several times, I was very understanding of the hard times involved with the process but it was very disappointing... so I'm a little burned out with the setting and Onyx Path.