Twitter Plans to Remove Tweets Promoting Rival Social-Media Platforms

Twitter also updated its website to describe the new policy, which said that the company could take actions such as temporarily locking or permanently suspending accounts that violated it.

Late Sunday, the tweets from @TwitterSupport and a note on the company’s website announcing the policy against promoting other social-media platforms appeared to have been deleted. Twitter didn’t immediately respond to a request for comment about the disappearance of the policy note on its website and the tweets.

The policy is the latest in a series of tumultuous changes for the social media platform since Mr. Musk acquired Twitter in late October. Mr. Musk has pledged that under his ownership, Twitter would welcome free speech and be transparent about content-moderation actions. But he has overseen a series of abrupt changes to the platform’s content-moderation policies.

Twitter had suspended on Thursday the official account of Mastodon, a rival social-media platform that some people have promoted as an alternative. Twitter didn’t provide an explanation. Mastodon’s account was no longer listed as suspended over the weekend.

Last week alone, Twitter suddenly dissolved its Trust and Safety Council and suspended the accounts of several journalists from outlets including CNN, the Washington Post, the New York Times and Mashable. 

The company on Saturday began reinstating the accounts of journalists who were suspended last week, according to a tweet from Mr. Musk. 

Mr. Musk had indicated that the suspensions of those journalists were linked to Twitter’s move last week to suspend an account that tweeted the movements of Mr. Musk’s private jet. The account used publicly available information. Twitter created a new policy last week that prohibits sharing what it called “live location information” about other people in most cases.

Twitter’s co-founder and former chief executive

Jack Dorsey,

who previously called Mr. Musk “the singular solution I trust” to lead Twitter, questioned the latest rule prohibiting free promotion of other social platforms. “Doesn’t make sense,” Mr. Dorsey tweeted Sunday. 

Mr. Musk has warned about Twitter’s financial prospects. He said in tweets last month that Twitter had suffered “a massive drop in revenue” and was losing more than $4 million a day. 

Write to Alexa Corse at alexa.corse@wsj.com

Twitter also updated its website to describe the new policy, which said that the company could take actions such as temporarily locking or permanently suspending accounts that violated it.

Late Sunday, the tweets from @TwitterSupport and a note on the company’s website announcing the policy against promoting other social-media platforms appeared to have been deleted. Twitter didn’t immediately respond to a request for comment about the disappearance of the policy note on its website and the tweets.

The policy is the latest in a series of tumultuous changes for the social media platform since Mr. Musk acquired Twitter in late October. Mr. Musk has pledged that under his ownership, Twitter would welcome free speech and be transparent about content-moderation actions. But he has overseen a series of abrupt changes to the platform’s content-moderation policies.

Twitter had suspended on Thursday the official account of Mastodon, a rival social-media platform that some people have promoted as an alternative. Twitter didn’t provide an explanation. Mastodon’s account was no longer listed as suspended over the weekend.

Last week alone, Twitter suddenly dissolved its Trust and Safety Council and suspended the accounts of several journalists from outlets including CNN, the Washington Post, the New York Times and Mashable. 

The company on Saturday began reinstating the accounts of journalists who were suspended last week, according to a tweet from Mr. Musk. 

Mr. Musk had indicated that the suspensions of those journalists were linked to Twitter’s move last week to suspend an account that tweeted the movements of Mr. Musk’s private jet. The account used publicly available information. Twitter created a new policy last week that prohibits sharing what it called “live location information” about other people in most cases.

Twitter’s co-founder and former chief executive

Jack Dorsey,

who previously called Mr. Musk “the singular solution I trust” to lead Twitter, questioned the latest rule prohibiting free promotion of other social platforms. “Doesn’t make sense,” Mr. Dorsey tweeted Sunday. 

Mr. Musk has warned about Twitter’s financial prospects. He said in tweets last month that Twitter had suffered “a massive drop in revenue” and was losing more than $4 million a day. 

Write to Alexa Corse at alexa.corse@wsj.com