If you're making claims like this where opinions are polarized, then a source would be handy. I could Google, but too lazy (see above), I'll simply assume what you say is correct.

I didn't know this (anyone who assumes I spend a lot of time on reading about Elon is wrong). If he knew this then it was stupid.

If he ought to know this but he didn't, then I get it. Don't get me wrong, that should be reprimanded by the SEC, but I wouldn't call it stupid. It simply means you're (perhaps too) focused on other priorities.

There were many times where I ought to know things about the Dutch law as well and I didn't and I got burned [1]. You can't know everything, I'd rather pay the fine so I can focus my time on more interesting things.

[1]

a) Too late with VAT without having anything too declare.

b) Going on a public road that I wasn't allowed to go in between certain times, I didn't even know it was a thing and I didn't read the signage fast enough. Now I know that municipalities are allowed to block people from other municipalities.