This is more serious than I thought it was.
The fact that it is not only the email but also the phone-numbers of the people are allegedly for sale means the possible buyer could have the chance not only to go for a classic fishing campaign but also more elaborate kinds of attacks like SIM-swap or even go as further as de-anonymize those who are deemed "rich enough" in order to get them to pay through extortion.

I hope this ends up being false, but just in case, I recommend anyone reading this to treat your Twitter-linked phone number as compromised and delete it as 2FA on your exchanges and bank accounts, as soon as possible until this gets confirmed or debunked officially.

Merry christmas