I think the main reason why Elon turned Twitter into hell was to get most of the people on older accounts to quit because they had EULAs that weren't compatible with his profit plans. Now, older accounts don't grow, and they languish in a sea of whatever content Elon wants to trend. There is incessant spam about crypto, celebrities, boring music, police chase and fight clips, KPop, a ton of things that no one is interested in, while the site just also loses money.
It's symbolic of social media altogether, as Instagram, TikTok, etc. have all turned on users to just push ads, and they announce features that nobody wants. It's the height of tone deafness that will cause everyone to migrate completely off of social media... They did it to themselves. It was their ego, not any sort of utopian vision, when you think only from your own limited social perspective, there's no way you can lead a platform of millions of people with differing perspectives and backgrounds.