Here's an un-paywalled example: https://www.theguardian.com/technology/2023/oct/09/x-twitter...
On number (3), er, it should be pretty obvious if you take a glance at that article.
This is, generally a fascinating example of a weird tendency in modern personality cults. Musk is, in this system, _both_ a magical super-genius _and_ so incompetent that he can't be expected to identify obvious nonsense before promoting it to a hundred million people, and is thus not culpable. You see this most often for Musk and Trump, but it's pretty widespread.
Perhaps a response to the internet age; in the 20th century it was more common for devotees to simply claim that the cult figure didn't say the thing, but that's so easy to disprove these days that presumably the super-position of visionary leader and helpless incompetent has become necessary.