Elon Musk sought to reassure big companies that advertise on Twitter on Wednesday that his of the social media platform won鈥檛 harm their brands, acknowledging that some 鈥渄umb things鈥� might happen on his way to creating what he says will be a better, safer user experience.

The latest erratic move on the minds of major advertisers 鈥� that the company depends on for revenue 鈥� was Musk鈥檚 decision to abolish a new 鈥渙fficial鈥� label on high-profile Twitter accounts just hours after introducing it.

Twitter began adding gray labels to prominent accounts Wednesday, including brands like Coca-Cola, Nike and Apple, to indicate that they are authentic. A few hours later, the labels started disappearing.

鈥淎part from being an aesthetic nightmare when looking at the Twitter feed, it was simply another way of creating a two-class system,鈥� the billionaire Tesla CEO told advertisers in an hour-long conversation broadcast live on Twitter. 鈥淚t wasn鈥檛 addressing the core problem.鈥�

Musk鈥檚 comments were his most expansive about Twitter鈥檚 future since he closed a $44 billion deal to buy the company late last month, dismissed its top executives almost immediately and, on Friday, . Major brands including General Motors, United Airlines, General Mills and others have as they watch whether Musk鈥檚 plans to loosen its guardrails against hate speech will lead to a rise in online toxicity.

Scores of companies big and small made their presence known among the more than 100,000 Twitter Space listeners by signing in with their brand Twitter accounts. The brand accounts for companies including banks Deutsche Bank, TD Ameritrade, gas company Chevron, automaker Nissan, airline Air Canada and many others appeared. Car brand Audi, which has paused Twitter ads, was there, as was retailer R.E.I., which said after the call its ads were still paused.

Musk said he鈥檚 still planning a 鈥渃ontent moderation council鈥� representing diverse viewpoints that will tackle inappropriate content and reassure advertisers but it would take 鈥渁 few months鈥� to put together. He said it will be advisory and 鈥渘ot a command council.鈥�

Lou Paskalis, longtime marketing and media executive and former Bank of America head of global media, said the briefing raised questions that will likely leave Fortune 500 advertisers uneasy.

The biggest concern for big advertisers is brand safety and risk avoidance, he said. And Musk seems uninterested in reigning in his Twitter persona that can be divisive 鈥� such as his advising Americans to vote Republican.

鈥淭o come out like Elon did 鈥� and say 鈥榲ote Republican since there鈥檚 a Democrat in the White House鈥� 鈥� I don鈥檛 know what marketer wants to go near that,鈥� he said.

One solution could be to hire a CEO to run the company and create stability while Musk continues to be his 鈥淐hief Twit鈥� persona, Paskalis said.

Musk had earlier a 鈥渢hermonuclear name & shame鈥� on advertisers that quit Twitter. But he took a more measured approach Wednesday, asking them to 鈥済ive it a minute and kind of see how things are evolving.鈥�

鈥淭he best way to understand what鈥檚 going on with Twitter is use Twitter,鈥� he told the group, which was represented mostly by the head of the Interactive Advertising Bureau, a trade association.

However, the confusion on Twitter continued Wednesday. The rollout hours earlier of the 鈥渙fficial鈥� labels appeared arbitrary, with some politicians, news outlets and well-known personalities getting the label and others not. In some cases, whether users could see an account鈥檚 鈥渙fficial鈥� label appeared to depend on what country they were in.

Then the labels started disappearing.

YouTube personality and author John Green got the label but his younger brother and 鈥渧logging鈥� partner Hank Green didn鈥檛 make the cut. Then John Green鈥檚 label was gone. Another popular YouTuber, Marques Brownlee, who posts videos on technology, tweeted he got the label, then tweeted again that it disappeared.

鈥淚 just killed it,鈥� Musk responded, though at first it wasn鈥檛 clear if he was referring specifically to Brownlee鈥檚 label or the entire project.

The site鈥檚 current system of using 鈥渂lue checks鈥� to confirm an account鈥檚 authenticity will soon go away for those who don鈥檛 pay a monthly fee. The checkmarks will be available for anyone willing to pay which will also include some bonus features, such as fewer ads and the ability to have tweets given greater visibility than those coming from non-subscribers.

The platform鈥檚 current verification system has been in place since 2009 and was created to ensure high-profile and public-facing accounts are who they say they are.

Experts have expressed concern that making the checkmark available to anyone for a fee could lead to impersonations and the spreading of misinformation and scams.

The gray label 鈥� a color that tends to blend into the background whether you use light or dark mode to scroll Twitter 鈥� was an apparent compromise.

Esther Crawford, a Twitter employee who has been working on the verification overhaul, had that the 鈥渙fficial鈥� label would be added to 鈥渟elect accounts鈥� when the new system launches.

鈥淣ot all previously verified accounts will get the 鈥極fficial鈥� label and the label is not available for purchase,鈥� said Crawford.

But after the labels started disappearing Wednesday, she again took to Twitter to say 鈥渢here are no sacred cows in product at Twitter anymore.鈥�

鈥淓lon is willing to try lots of things 鈥� many will fail, some will succeed,鈥� she said.

There are about 423,000 verified accounts Many of those belong to celebrities, businesses and politicians.

But a large chunk of verified accounts belong to individual journalists, some with tiny followings at local newspapers and news sites around the world. The idea was to verify reporters so their identities couldn鈥檛 be used to push false information on Twitter.

Musk, who often bristles at critical news coverage, pushed back against that use of the tool Wednesday, saying he wanted to elevate 鈥渃itizen journalism鈥� and the 鈥渧oice of the people鈥� over publications he suggested had too much influence in defining the 鈥淲estern narrative.鈥� Journalism professionals generally consider Musk鈥檚 concept of elevating 鈥渃itizen journalists鈥� dangerous because it ignores the need for standards, including fact-checking, that responsible news organizations enforce.

鈥擬att O鈥檅rien, Mae Anderson and Barbara Ortutay, The Associated Press