Earlier quoted context omitted.
From official Twitter support: > We recognize that many of our users are active on other social media platforms. However, we will no longer allow free promotion of certain social media platforms on Twitter. > Specifically, we will remove accounts created solely for the purpose of promoting other social platforms and content that contains links or usernames for the following platforms: Facebook, Instagram, Mastodon, T…
Notice that TikTok isn't on the list. Seems like Musk crafted the rules in a way to ensure that one of his favorite Twitter accounts is safe from this rule about posting links to other social media.
This means he’d have failed to achieved his purpose, since TikTok is certainly a competitor even if the medium is video rather than text, but I also don’t think he understands social media all that well.