Don't let Dorsey launder his reputation by timidly criticizing the obviously horrendous moron he handpicked to sell Twitter to. Dorsey is responsible for driving Twitter into the ground long before Musk made them an offer they couldn't refuse.
https://www.washingtonpost.com/technology/2023/04/29/elon-musk-twitter-jack-dorsey/
Twitter founder Jack Dorsey says Musk wasn’t an ideal leader after all

The former CEO issued his strongest criticism yet of Musk's takeover of the social media site.

The Washington Post
Everything good about Twitter happened in spite of the series of assholes and sociopaths that ran it, not because of them.
@fraying Williams and Costolo were slightly better, but they ended up effectively being useful idiots who were dumped whenever they'd served their purpose.
@CrazyMyra Costolo was a wannabe comedian who had no business running a social site and Williams, well, I worked for him at Blogger and try not to speak ill of former bosses so I won’t say anything more.