Twitter announced Tuesday it will soon start experimenting with an edit button, but only on its monthly subscription service at first.

The inability to tweak tweets after firing them off has been a key complaint among users of the one-to-many messaging platform.

Word that the company would start testing an edit feature on Twitter Blue came after newly-named board member Elon Musk conducted an online poll.

In a tweet, Musk asked if people wanted an edit button at Twitter. Nearly 4.4 million votes were cast, some 73 percent of them saying "yes."

"Now that everyone is asking... yes, we've been working on an edit feature since last year," Twitter posted on its communications account.

"No, we didn’t get the idea from a poll," it added, poking fun at the Tesla boss.

According to Jay Sullivan, the company's head of consumer product, "Edit" has been the most requested Twitter feature "for many years."

"People want to be able to fix (sometimes embarrassing) mistakes, typos and hot takes in the moment. They currently work around this by deleting and tweeting again," Sullivan said in a tweet-thread.

The San Francisco-based internet firm said it will kick off testing in coming months to figure out what works when it comes to letting users tinker with posts after they have gone live.

Twitter Blue lets people pay a monthly subscription fee of $3 to access special content or features.

Blue is available on the Twitter application for Apple or Android smartphones in Australia, Canada, New Zealand and the United States, according to the company.

Twitter also announced Tuesday that Musk will join its board, boosting hopes the eccentric entrepreneur will lift the social media company's prospects -- although some observers expressed wariness of the billionaire's influence.

Twitter CEO Parag Agrawal called Musk "a passionate believer and intense critic of the service which is exactly what we need," while Musk said he looked forward to soon making "significant improvements to Twitter."

Musk, who also leads the SpaceX venture and is the world's richest man, on Monday had announced his purchase of 73.5 million Twitter shares, or 9.2 percent of the company's common stock.

Jack Dorsey, the co-founder of Twitter who stepped down as CEO last year, had long opposed an "edit" button on the basis that users could change a tweet that had already been widely shared, changing its meaning or context.

Sullivan addressed those concerns in his posts.

"Without things like time limits, controls, and transparency about what has been edited, Edit could be misused to alter the record of the public conversation," he said, adding that that company's top priority is "protecting the integrity of that public conversation."

He noted that "it will take time" to develop the "Edit" feature and the company will be "actively seeking input and adversarial thinking" in advance of its launch.

Twitter names Elon Musk to board

Twitter announced Tuesday that Elon Musk will join its board, boosting hopes the Tesla boss will lift the social media company's prospects as some observers expressed wariness of the billionaire's influence.

Shares rose for a second day on news of Musk's board appointment after surging on Monday's disclosure of the outspoken entrepreneur's large stake in the company.

"I'm excited to share that we're appointing @elonmusk to our board! Through conversations with Elon in recent weeks, it became clear to us that he would bring great value," Twitter CEO Parag Agrawal said in a tweet.

Agrawal called Musk "a passionate believer and intense critic of the service which is exactly what we need," while Musk said he looked forward to soon making "significant improvements to Twitter."

Musk, who also leads the SpaceX venture and is the world's richest man, had the day prior announced his purchase of 73.5 million shares or 9.2 percent of Twitter's common stock, sending the company's value up more than 27 percent on Wall Street.

Analysts at Wedbush said the invitation from Agrawal marks "a friendly move by the Twitter board to embrace Musk" that could lead to strategic shifts for a company "still struggling in a social media arms race," according to a note.

Musk had previously questioned the platform's committment to freedom of speech -- criticism that has now fed hopes among political conservatives who accuse the platform of "censorship" and hope to see former US president Donald Trump returned to Twitter following a lifetime ban in the wake of the January 6 riot.

Some progressives expressed discomfort with Musk's increased say at Twitter, which the Tesla boss has called a "de facto public town square."

"What could possibly go wrong with an oligarch determining what constitutes free speech?" tweeted former Labor Secretary Robert Reich, who noted that Musk has "threatened to sue bloggers and fired employees for speaking out about safety concerns."

Musk will remain on Twitter's board until the company's annual shareholder's meeting in 2024, and he has promised not to take a stake larger than 14.9 percent in the company during that time, according to a securities filing.

- Political implications? -
The arrival of Musk cheered several analysts, who have rued the performance of a company that is influential in the political and media worlds but for which profitable growth has proved elusive.

In 2021, Twitter's revenues were $5.1 billion, up 37 percent from 2020, but a fraction of the $33.7 billion reported by Facebook parent Meta.

CFRA Research analyst Angelino Zino applauded the arrival of a "true visionary" in Musk.

"Ultimately, the goal is to better monetize the platform, and we think Musk can only help, not hurt the process, with his recent criticism of the company as a refreshing sign," Zino said, noting that the term's of Musk's stake mean he can't take over the company.

Susannah Streeter, an analyst at Hargreaves Lansdown, offered a more muted outlook, characterizing Musk as "socially ambitious" and raising the possibility that the Tesla boss will use the platform to promote his ventures.

"Over the longer term, Twitter investors will want to see that high levels of governance are adhered to, otherwise the independence of Twitter could be questioned, and the risk is that users may start to drift away," Streeter said.

In the political universe, far-right Republican House Representative Lauren Boebert was among those calling for Musk to "lift the political censorship."

"Oh... and BRING BACK TRUMP!" she tweeted.

Two days after the January 6 attack on the US capitol, Twitter announced the "permanent suspension" of Trump's account, citing the "risk of further incitement of violence."

Historian James Fell was among those trying to preempt a Trump Twitter revival, saying if the ex-president is restored, "I'll probably ditch this platform altogether."

But others said Musk's motivation behind the Twitter investment probably has little to do with national politics.

"Twitter is a key resource for him," said David Kirsch, a professor at the Robert Smith School of Business, who has written extensively on electric vehicles and modern technology.

Musk currently has more than 80 million followers on the platform, which Kirsch said has likely saved him hundreds of millions of dollars in advertising.

"He is the master of the platform, at a certain point he couldn't afford not to have a say in how it's managed," said Kirsch. "All the politics are secondary."

Shares of Twitter rose 2.0 percent to $50.98 trading.