My theory is one of two.
1. This guy has some mental disability that affects the ability to act rationally. Manic depression, Asperger's, or something similar. I worked with a guy that had manic depression and he kind of acted like this dude. He would go through fits of "I am the greatest thing to walk the earth" and would make up some of the most far fetched stuff and stick to it no matter what.
2. We have a dude that truly is mid sixties that really thinks he is the greatest thing since sliced bread. I saw this type of behavior when I worked at a sporting goods store. I would get many boomer aged people that came in and would spout stuff very similar to this. I don't know what the cause of it is. I had a guy show me all the pictures of these huge deer he killed and how he wouldnt even look at a deer under 220 or 240 ( I cant remember exactly what the threshold was but it was unreasonably big). I am far from an expert but none of the deer he had were that big. I finally asked him where he was consistently finding deer this big? He gave me the name of an outfitter in Mexico that he went with every year. The cheapest hunt was 50,000. OP talks just like this guy did.
If this is a troll, which is a possibility, he has a bank of pictures that cant be found posted on the internet. I have reversed searched them and cant find them anywhere. We also have someone that claims their friend met OP at the orientation meeting. That is what I base my theories on and why I dont think this is some 20 something year old in their moms basement. There was also a guy very early own that claimed to have known OP for years.
Either way, the dude is full of shit but has brought great entertainment.