Twitter bans linking to rivals, such as Facebook, Instagram

Twitter will ban the free promotions of rival social media platforms by prohibiting users from linking to those websites, including Facebook, Instagram, and Mastodon.

Other banned platforms are Tribel, Nostr, Post, and former President Donald Trump's Truth Social. Twitter is also banning social media link aggregators such as Linktree, which shows where people are on different websites.

However, Twitter was mum about why its blacklisting those seven websites but not others such as Parler, TikTok, or LinkedIn.

Twitter had taken action against one of its rivals, the rapidly-growing Mastodon, which serves as a Twitter alternative for users unhappy with Musk’s Twitter overhaul

Some Twitter users have included links to their new Mastodon profile and encouraged followers to find them there.

Musk is also cracking down on certain kinds of speech. Last week, he shut down a Twitter account that was tracking his private jet’s flights.

Musk has changed Twitter's rules to prohibit sharing of another person’s current location without their consent.