The Tesla CEO has made a series of bizarre postings, including changing his Twitter name to Daddy DotCom.
Elon Musk has left his 27 million followers confused by claiming he has deleted his Twitter account - despite his profile remaining live for all to see.
The Tesla chief executive tweeted "Just deleted my Twitter account" and changed his profile picture to black, although the account still appears to be active.
There was mixed reaction from internet users, with some seeming dismayed by his apparent departure and others claiming it was prompted by an earlier online dispute.
In a now-deleted tweet, Mr Musk posted a piece of art but was quickly criticised for not crediting the original artist.
He wrote in response: "No one should be credited with anything ever."
The entrepreneur has recently made a number of bizarre postings on Twitter, including changing his name to Daddy DotCom on Father's Day.
One Twitter user wrote: "I can't believe elon musk has fully followed the trajectory of an angry forum teenager in a single day, all the way from initial dispute to claiming you're deleting your account and then not actually deleting it."
Another said: "I'm no expert but I think you actually have to delete your account to delete your account."
One person even joked, "Luckily I, Elon Musk, have this second account which is definitely run by me."
Several users questioned whether his account had been hacked.
The Tesla CEO has landed himself in hot water over his tweeting before
Mr Musk's supposed social media departure comes after the Tesla CEO agreed to have his social media posts regarding the carmaker pre-approved by a lawyer.
He landed himself in hot water with the Securities and Exchange Commission (SEC) after tweeting that he had secured funding to take the company private at $420 (£325) a share, despite not having the money to pull off the deal.
Mr Musk originally reached a settlement with the SEC in September last year, but it later brought a case alleging he violated the settlement.
In April, Mr Musk agreed to seek lawyer approval before tweeting about topics including Tesla's finances, potential mergers, sales figures, new business lines or a change in company directors.
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