Comparing Goyal to GRRM is desultory. GRRM charged his book buyers a whole bunch of money in installments for decades, and when he got rich out of these fans, he happily screws them over by refusing to finish his story.

Goyal provided a unique and complete piece of software, charging exactly zero, and continues to improve it even a decade after it released.

I don't know much about GRRM, so are you referring to general book sales when you mention "whole bunch of money in installments"?

If you start consuming an unfinished story and then entitle yourself to an ending, that's 100% your fault. As an outside observer who never even watched the show, GoT fans are just tantrum-throwing assholes. When you spend $X on a book, you are just buying that book, not that book + liens on the author's future output + a guarantee that there will be any. Such weird entitlement in that community.

Also, you presumably also demand a really good book as well so that he doesn't "screw you over" (cmon) with a bad book where the fans now recommend dodging the final books (Rendezvous with Rama, Wheel of Time, etc).

I agree GoT fans are weird but come on, it's taken him a literal decade to finish the last book and it's going to take more with the next one. You don't have to bring up higher notions of entitlement or contract law to make the simple remark that the dude is slow and riding the gravy train that came with his early books (which took him much less to write, incidentally). Saying 'it's your fault' just makes you look like kind of a dick.