One signatory recanted within hours of the letter being published.
Jennifer Finney Boylan, a US author and transgender activist, tweeted: "I did not know who else had signed that letter.
"I thought I was endorsing a well-meaning, if vague, message against internet shaming."
She added: "I am so sorry."
Oh, the irony! 🤣
“I thought I was signing something about the stupidity of virtue-signally internet sanctions on free speech, although I actually didn’t understand what it said, but I’ve now noticed that some very successful people with different opinions to me have signed it, so I’m cancelling my own signature and issuing a virtue-signalling apology,” said someone that nobody has ever heard of.