Surely, my list isn’t complete. You can always add a comment and present more facts.
There's one you didn't add about what people are doing with bitcoins asides just hodling, people who gamble online on casinos that do not have a direct funding option via their fiat bank account, fund their account via crypto using their bitcoins to fund their online casino accounts so they can continue gambling there.
People who are already rich in Bitcoin, don't do much anymore other than enjoy the time, as you know gambling is one of the most popular ways to have some fun, and since one does not necessarily need to play the games for winning and making profits from it, the Bitcoin big bags can decide to play gambling games all day round without having to do any other thing.
And also some Bitcoin big wings do future trading, just opening up positions to predict the price of Bitcoin by watching the Bitcoin chart and making some predictions without pressure to make profits but just for fun and testing their ability to predict the future of Bitcoin price.