To be fair, the people who labelled themselves as "Elon Musk" should have labelled themselves as "Elon Musk (parody)" or similar. That way, they automatically

To be fair, the people who labelled themselves as "Elon Musk" should have labelled themselves as "Elon Musk (parody)" or similar. That way, they automatically label their tweets as parody, and don't have to include such sentences as "this tweet was a parody" as implied in your post. In fact I'm pretty sure that's what is meant when the Twitter TOS states "To avoid confusing others about an account’s affiliation, parody, commentary, and fan accounts must distinguish themselves in BOTH their account name and bio." Exercising their free speech by clumsily painting "pArOdY" in mspaint on their Twitter account banner picture, but not including "(Parody)" in their account name, is in breach of the TOS.