I only recently heard about Rat a little while ago. I am very sad to find out about his passing. He helped me out with my build, a research project for college, and in general kept me entertained far more than he could possibly have known. I was also a big fan of Rat, after the first time he put me in my place. I never knew him personally, but it is surprising how close we can feel to someone just by reading their posts.
Best wishes to his family and friends. I am very sorry for your loss.
There's never time to do it right, but there's always time to do it over.