There's something else here, and I think people like you miss it for whatever reason. Maybe you don't do your research, I don't know.
When you have an online forum, whether it be twitter or a message board or whatever, well in the case of something like Surly, it's a bunch of mostly 30-somethings to 50-somethings farting around, blowing off steam about this or that team or sport, and just being funny or trolling each other or talking about common interests. Many/most of us in real life are not like our online personas - for instance, you could go with Nicole to a Rainey Street bar and not wind up face down in Town Lake (unless you fucked around).
Elon and Twitter? That is him. Both because he's making the comments that he does under his real, verified name, but also because he echoes a lot of his online postings in interviews and videos. When he veers into promoting somebody that's antisemitic or amplifying a batshit racist conspiracy theory by retweeting, responding to, or quoting somebody, he's putting his name on that. When he's promoting some dumb fucking Qanon pizzagate bullshit, he's putting his name on that and telling you that he believes it. He's wanting to get the likes and draw out the idiots and get them to praise him.
And if you say "he's just providing a platform for everybody and believes in free speech", well you're wrong (and not just because his fanbois don't understand the 1st Amendment). When he unbanned all of the white supremacists and antisemites and conspiracy nuts, at that one moment in time, he could claim that he was just providing a platform and that he believes in absolute free speech. When he allowed them to bug their moms to give them $8 a month to be verified, at that moment, he started down the path of supporting and amplifying them, because he made a policy change that allowed them some legitimacy that they did not have before.
When he quotes, responds to, likes, or retweets an antisemite or a batshit conspiracy theory, he is doing so as @elonmusk, owner of Twitter, CEO and partial owner of Tesla, and partial owner of SpaceX, and he is amplifying that person or that message or that conspiracy theory to his 165 million followers.
You don't get to say, and he doesn't get to say "that's not who Elon Musk is" because he literally put his name and face on whatever it is that he liked or retweeted or responded to and he amplified it to his 165 million followers.
He could respond to or retweet the antisemite shit or the batshit Qanon conspiracy crap with an anonymous account and nobody would be the wiser, but he doesn't. He does it as @elonmusk, because he needs those likes and retweets.