Musk fired anyone who mattered, and those with brains who didn't fall victim to the multiple culls left of their own volition. There's nobody there to actually maintain the site, which has multiple layers of legacy code and technology in it's foundation.
Musk is a billionaire narcissist, so naturally after telling all the big name advertisers to fuck off, the little guys and their ad buys are a meaningless amount of revenue to him. I mean, money is money and he should be taking peoples' money, but that would require him to hire more developers and/or go suck the dicks of the ones he pushed out so the ad buy workflow could actually function properly. The thing is, Musk doesn't know how to run a company, because if he did these problems would not exist. He paid 50 billion dollars for platform to say whatever he wants without fear of being banned, and everything beyond that doesn't matter to him.
For the record, it's unethical to spend money on ad buys anywhere, because ads by their very nature are designed to manipulate people into buying/using the product advertised. It doesn't really matter if you're spending that money on Twitter, Facebook, YouTube, whatever. They're all run by greedy scumbags with the common goal of extracting as much monetary benefit from the user base as possible. That Musk appears to be in it for reasons other than money is irrelevant. The leadership of all other major platforms are just as dirty as he is, and you buying ads on any of these platforms is equally dirty.
