A YouTube personality I follow got cancelled not long ago. They responded by exiting Twitter, but there were complications. One of the things they mentioned that had never occurred to me is that as a published author, they had a contractual agreement with their
publisher to maintain an online personality.
They had to come to special terms with their publisher to modify contract because the nature of cancellation is such that at the time, there was basically nothing they could say that would improve their "brand," so the purpose of the contract stipulation had become counterproductive. But as parent notes, this is a real problem some people have, depending on their profession.