He deleted the brand the way Malcolm X deleted his surname.
If he’d just started a Twitter competitor, with blackjack and doxxing, the only difference would be that Twitter was a bit quieter.
If he’d bought Twitter, the hellsite, and then burned it to the ground as a weird flex, the only difference would be slightly more people using Mastodon.
And in both cases nobody would know he’s a complete crybaby. We’d just harbor strong suspicions.