Almost anyone can think of other apparent motivations Musk might have without my help and indeed without much thought. It doesn't require explanation.
I also think that people should be strongly discouraged from making claims like "here is a man who twice bet his personal fortune on these companies with no other apparent motive besides making the world a better place." That statement actively decreased the quality of discussion. Hopefully bronz will think before posting in the future.
There are communities where insulting the author of a comment is an acceptable way to make an author think critically about their statement, but this is not one of them. That your comment consisted entirely of an insult and your point needed to be assumed from the subtext points towards it not being very conducive for discussion itself. That you chose to address a comment that you think lowered the quality of discussion with a comment that was even worse in that respect is unfortunate. Your goal was good, your methods were not.
Where discussion is prioritized over personal expression. It's not just about what you say, but about how you say it, because it doesn't matter how insightful you are if nobody understands you. It's not about being nice for niceness sake, it's about emphasizing methods of communication that work.
That depends very much on what you consider "working". I don't see any value whatsoever in what bronz was communicating, and any discussion that starts from that is going to be equally vapid. That's not "working" to me.
I actually have nothing against Elon Musk. I don't expect anyone to do things completely altruistically. But it's ridiculous to claim that this is just purely altruistic.
Purely altruistic? Probably not. But spending hundreds of millions of dollars on ventures that have an extremely high likely of failure? He's definitely not in it primarily for the cash.
And, once that explanatory paragraph was written, you could remove the insult and just let it stand on its own.