Twitter is now saying they officially will block links to competitor websites, including Mastodon instances, Instagram, Facebook, and others.

However, links to Vkontakte, Telegram, Truth Social, Parler, and TikTok all worked as of this writing.

@davetroy but I bet promoting Post is just fine though, amirite?
@KAnon Post made “the list” as well.
@Sedunker thanks for that info
@KAnon @Sedunker We’ll see how that new rule is applied (I will probably get suspended). Not including Post would have been too obvious.