The phantom troupe? I do know of them. At least a little. The Gon I know told me about them from when he was in Yorknew. Pitou explains.

Ceased to be a person? So whoever told you about me hated me in some way..well, I’m not sure who it would be to be honest. Whatever version of me you’ve been told about isn't me. My full name is Neferpitou. I just go by Pitou.