I do not get out much, so only learned of the ALS ice bucket challenge just now. And I looked up the youtube video of Bill with his contraption. I don't think he bothered to build that stand himself, although he would be certainly capable of it.
About his deck, heck, he would spend a few millions on it to have it done top notch. What I was talking about is true DIY labor, which I would not do if I had his money. Would not risk cutting off a finger or getting hurt doing labor work.
In the earlier post, I talked about seeing people spending $300K to $550K to have their deck built by special contractors, ironically on a channel called DIY. The home owners on that show looked like ordinary people, but they had so much money. They are not in the billionaire class like Bill, but their net worth has to be an order of magnitude more than that of the "average ER.org" here. And there are seemingly so many of them. There may be a lot more rich people than commonly thought.