Sean K Reynolds has always been very kind with the amount of free fan support he does.
He has actually worked on several other settings that are away from the standard fantasy thing that D&D does. And he has put up freebies for most of his products.
I wish that he actually owned the rights to Ghostwalk, so that he could run a 5th Edition Kickstarter for it. I'm not so into 5th Edition, but another version of the Ghostwalk book could pull in errata, clarify things, expand on the countries around Manifest and get Sean some money.