Former Twitter CEO Jack Dorsey is back with yet another tweetstorm by talking about the social media giant’s “shortcomings”, his failure to quickly implement necessary changes, build user trust, transparency, and whether or not the platform should permanently ban its user accounts.

These tweets come after its new owner Elon Musk had posted a tweet about several improvements that he would make to the platform before he bought for $44 billion.

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The Tesla CEO had said he had zero confidence in the current leadership and posted a meme targeting Twitter’s chief legal officer Vijaya Gadde.

While Dorsey’s thread didn’t mention names, it seems he’s referring to some of Twitter’s past failures and controversial moments that have resurfaced amid the noisy buyout.

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In a tweet, Jack said, “Nothing that is said now matters. What matters is how the service works and acts, and how quickly it learns and improves. My biggest failing was that quickness part. I’m confident that part at least is being addressed, and will be fixed.” 

He also acknowledged that the decisions Twitter made in the past to improve were slow and hinted that Musk will be much quicker in this area.

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Dorsey’s tweets mentioned other issues like the lifetime ban on several accounts. He clarified his stance saying he was against permanent bans, hinting at former US President Donald Trump’s and The New York Post’s ban.

He wrote, “As I’ve said before, I don’t believe any permanent ban (with the exception of illegal activity) is right or should be possible. This is why we need a protocol that’s resilient to the layers above.”

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Jack also shared his thoughts about what Twitter should do to fix itself in the arena of transparency of policy to gain people’s trust.

Earlier, Dorsey had endorsed Musk’s takeover. He said, “Elon is the singular solution I trust,” and said that his buying the company will be out of an “impossible” situation in which it is tied to an ad-based revenue model, according to a Wall Street Journal report.