I looked at your link. Thanks for that.
I really don't know what he gets out of his game
Me, neither, but does it matter? I enjoy that game. I'm not trying to teach him anything. I'd be glad to if I could, but that's not going to happen, so one's purpose here should be otherwise. I learn two ways here on RF. One is from the words of other people like you and Sgt Pepper with whom I share a common temperament and way of processing information. Your words and hers resonate with me, and I can have discussion with each of you that will be productive and informative. It's for people like you that I write, and it's from people like you that I learn things like what I learned looking at your link (and I learned from that poster as well).
And each of you has proposed things that DON'T resonate with me. Didn't you propose a holographic universe or simulation universe a while back? If not, my apologies. Sgt Pepper writes about the spirit world, which I can't identify with, either. Nevertheless, I can communicate effectively with each of you.
Then, there's the people with whom discussion is a problem - people that preach without paying attention to the replies, people with chaotic or grandiose thought, hostile and emotionally labile types, etc.. When I reply to their posts, it's for the potential benefit of that first group, since I don't expect to be able to do anything for that second group. But I learn from them as well, albeit indirectly. One of my purposes on RF has been to collect a large number of data points regarding the spectrum of types of people in the various denominations, which is contrasted with the control group - those without religion - to get a general sense of how faith-based thinking affects other thinking, so I don't mind posters like this one at all.
We can think of this experience as something akin to a university course with lecture and lab sections. We learn by discussion with some posters and by observing reactions with others.
He's just an enormous time-waster
The funny thing about retirement is that I have few responsibilities that take my time, so I can't really waste any of it. If I'm enjoying myself, then it's time well spent. Even if I'm bored, I can't really call it time wasted, since it isn't needed for anything else. So, the phrase, "Don't waste my time" doesn't have much meaning any more.